I've had complete failures on both electronic and mechanical cameras. The failure on the electronic camera happened early on, almost 30 years ago, and pushed toward mechanical cameras. I prefer mechanical camera now anyway; it forces me to use my brain. Through experience, I know my exposures before any computer chip can tell me, and I focus faster w/o autofocus. It keeps things simple because there's less choice.
I still shoot a Zeiss Ikon rangefinder which is now approaching 100 years old. No camera from the 90's and 2000's will make it even have that time. In the circa 70's they switch from making cameras that can be repaired by adjustments to those repaired by just dropping in new parts, no adjustments allowed. A mechanical camera can keep chugging along, with service, long after electronic whiz bangs are dead for lack of parts. Fifty years from now, you'll still see M2's, M3's, F/F2's, ect., but not today's electronic rangefinder or SLR.
So in a sense, older is better, and it is true they don't make it like them anymore.