The thing with people who squirrel things away in hopes that one day it will be valuable, is that they are correct 100% of the time.
Personally, the way I see it I'll be pushing up daisies by the time they gain real currency as a collectible, and I'm gonna be 44 in two weeks. If you have the space and the interest, I say go for it. But since you can't be the savior of everything unless your space is unlimited, just focus on what turns you on.
Any genre of TV is pretty much the same. Up to 1974, there were over 400 MILLION tube TVs made. A survival rate of even half a percent puts that figure at 2 million sets still out there. I remember that to help keep my perspective