Depending on what you and your S.O. consider to be Inexpensive. When my Dearly Beloved™ and I were planning, we knew several things:
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We pay 100 % ourselves. I was late 40’s, she was already 50. We pay our own expenses in life.
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The lowest possible costs we could manage, with one caveat: This was her first wedding. We both approached this in a logical cost-conscious manner but I said if there was one thing she INSISTED be done " in style ", we do it. All things being reasonable of course. She did. She wanted to have a killer wedding cake. Not huge, not obnoxiously pricey- but a truly delicious exceptional cake. We drove to the area months before, and spent an entire day driving from baker to baker, cake-testing. After 9 hours we were completely stoned on sugar. And we had our baker chosen. She was a bit high-strung and pushy, but when it came to it, she delivered and was perfectly professional as was her wing gal. I think the cake was… $ 400?
With that in mind, here’s what we did:
Wedding in an Episcopal Church near her family.
A) Bought our own liquor. Bought too much, we still have bottles left unopened.
B) Interviewed local restaurants that did catering. Found one that actually could do very different menus for our two events.
C) Did a light foods reception for all who attended the wedding. We did it IN the Parish Hall, down the hall from the church itself. It was free to use to us. A few different hot finger foods. Soda, wine, water. This was for everyone who came. Quite a few folks couldn’t say through into the evening for the larger After-Party.
D) Photos by our dear friend. She’s NOT a pro. Has a great eye, used my DSLR. We have a surfeit of great images. Free. ( And I returned the favor 2 years later by shooting HER wedding.
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E) Same restaurant was able to really pull out all the stops with a killer BBQ dinner. Both meals were buffet.
F) Rented tables and chairs locally, picked them up myself in the van. This was the one 100% waste. We were going to have BBQ on the back lawn of my BIL and SIL. Aside from the 40 minutes or so when we were taking photos post-wedding, it rained ALL DAY and ALL NIGHT. The tables and chairs sat in the garage dry and untouched. When I returned them the next morning, the fellow believed me, saw they were completely dry and had no grass stuck to them and credited me back 75% of the rental. Nice !
G) Flowers. We both detested the idea of cut flowers. Immense cost, they’re dead and stinky in 3 days. Instead, we worked with the lovely and wonderful church Priest and his amazing sweet wife. She’s a gardener. We proposed doing all living plants and donating all of them to her for the church/ rectory gardens. They both went plant shopping with us the weekend before the wedding. One Arbor Vitae died. Otherwise, all plants lived. Four rose plants/bushes, other plants, etc. All still living in the churchyard. In the aggregate, cheaper than big cut flowers arrangements. She did carry a very small simple spray of flowers, I had one flower on my jacket.
H) No rented tux. New suit, which I needed anyway. She had zero interest in a “wedding dress”. Not her style. She found what was apparently a bridesmaids dress. When I saw her in it, I started crying. So, she chose wisely 
I) No limo. I drove the van, she got a ride with her family.
J) The Priest refused a fee of any kind for personal reasons. We did feel strongly about making a gift to the parish. They are small and poor, the church small and in need of so many things. They wanted to encourage others to have weddings there. There’d been one about 2 years before ours, and before that there hadn’t been a wedding in that church for over 25 years. We gave them a huge crystal punchbowl, cups and saucers and coffee cups/saucers and cake plates. Plain enough that outside stuff could be mixed in with it.
K) About $ 600 to fly her parents round trip in for the wedding.
L) Rings. Hmm. Her engagement ring was my Grandmother’s engagement ring. 1920’s Deco design. Platinum. Priceless of course… Her wedding ring was about 200, she wanted small and simple. Mine is stainless steel. 79.00.
M) Paper goods, etc. We bought ALL of that at BJ’s. Caterer was told that we would not be renting ANYTHING from her. She wanted our business, that was the deal. She agreed.
Everyone enjoyed the reception post-wedding. It was formal, about what we wanted, but not stuffy. The cake was unbelievable. The after-party was terrific despite the drenching rain. BBQ handled under a large EZ-UP tent I bought that morning in anticipation of rain on the cooks, food served inside the house. Many folks out on the covered porch, etc. A blast.
We budgeted, kept a spreadsheet and compared our final costs to what we thought we’d hit. We were quite close. We did the entire weekend for under $ 5,000.00.
To us, that was a reasonably priced wedding with everyone there that we wanted to have there.
ETA: NO VIDEO !!. We both work in the film/ television business. Cameras? Nooooooo wayyyyyyyyy. 