I have a Gameboy that I purchased in 1992. It came with Tetris, and I still play it almost every day.
I have a Sansui 5000A tuner/amp and a pair of Kenwood KL880 speakers I bought in Hong Kong in, IIRC, 1969. The FM tuner in the Sansui quit working years ago but It has so many connectors on the back that I still keep it as an amplifier.
The speakers, of course, still work as well as ever.
I still have the HP-12C financial calculator I purchased in 1985. You can still buy, for all practical purposes, the same calculator, unchanged, from HP for about $50, I think I paid $35 for mine 34 years ago.
I bought thisJVC HR7300U top loader VHS deck in the early 1980s. It cost around $800 with tax. Painful at the time.
I still have it, it still works, and it has out-survived all 3 or 4 decks that followed it. This beast keeps on ticking.
I’m afraid to ask, but do you still use it?
Traffican’ weddertodegger on the eights.
That’s my pick, too. I think mine’s older than yours but I got it in the mid 90s. It’s a Stage 73 and has the factory vibrato. It came with one of the original 300 Watt amplifier cabinets that I didn’t realize was originally a pair until relatively recently. I had the original pedal but it hasn’t been seen in years. The piano has been in my parent’s basement for over 25 years.
A Solon soldering iron which my late father stole from the Air Force at the end of WW2.
HP-11C Calculator -using it for Donkeys Years, no idea how old it is.
AR3-a speakers - 40+ years old and still kicking butt as the mains in the living room.
Acoustic 370 Bass Amp - 40 years young. Built like a tank and can drive a 2 Ohm load.
Fender Precision Bass - born in '64, so it should be getting Senior discounts.
Absolutely!! 
In 1984 I bought a (used) Ampeg SVT bass amp. It looks just like this.
I still have it, though I haven’t turned it on in over 20 years.