This. A hundred times! 
I sew quite a lot of my professional work clothes, which consists of dresses and jackets. I have a very pear-shaped figure, and I like my dresses lined. I have learned through some trial and error, to fit my own body well. I know what looks good on ME, and what patterns work for ME. Yes, I appreciate your compliments on my outfit, and NO, I will not, ever, make one for you! 
I sew for many reasons. It is a good creative outlet, and I like the customization and uniqueness of styling my own things, my way. I guess what mainly drove me to it was spending hours shopping for clothes and finding nothing that fit, or was ugly fabric, or was shoddily made, etc… After awhile, I just concluded that I would rather invest these wasted hours in making something I truly loved.
Like several of you have stated, I learned the basics of sewing from my mother, in her sewing room in the 70s. She sewed our play (and some school) clothes out of necessity. I liked watching her and she got me started sewing doll clothes from her scraps while sitting on encyclopedias at her big brown Singer machine, that she still has to this day, and yes, it still works like a charm. She still sews, but mainly just home decor things. She also sewed my prom dresses and my big 80s wedding dress, and all were lovely and just what I wanted (at the time, anyway, lol!)
I bought a Janome machine a few years ago for about $500 and I adore it. I got it at a local Singer store. They service and sell machines. I take mine in every so often for a check up.
I think Project Runway has caused some young people to become interested in sewing again. I see many young people in my local Joann’s and Hobby Lobby, but we have a big Art College in our town.
I agree with the posters who said department stores are the wrong place to look anymore. Sewing machines are no longer considered a normal household appliance item, such as a toaster or a stand mixer. You have to go to a specialty store.
According to my mother, the reason to sew these days is not for the economy of it as in her day (because sewing clothes does not save you any money today), it is for the creativity or because you want something specific. My reasons are certainly the latter, so I guess there’s some truth in that.