Can you define last? Old speakers still play and sound good, but over time the sound quality, assuming no damage, will degrade slowly. I had a 20 year old pair of SF and they sound good, but not as good as new. Difficult to really compare with the passage of time. I was told the caps (or other elements) in the cross overs can go out of spec after decades and the aging rubber or what ever it is can break down a bit.
How long do speakers last?
I ask because I have an opportunity to buy a pair of Von Schweikert VR-33's for an insanely good price. I get it: "it depends how hard they have been driven", but judging by the condition they were very nicely taken care of. My only concern is that will need repairs in the future whereas I could just spend that money on new speakers. On the other hand they sound fantastic. Just curious about the lifespan. They'd be a nice upgrade from my Klipsch bookshelves / sub combo.