Its more to do with the person and what specific games they want to play. I still pull out my Dreamcast and Saturn for a few hours (twice a year maybe), I havnt played my PS2 in a few years now and my psone gete played almost daily... as an emulator on my phone. Same with N64. As good as this generation was and because it was so long, ive had my fill of its games for a while. Theres nothing to bring me back anytime soon so im happy to pack them away for a while.
But I get where the OP is heading; sometimes I get a craving for a certain game but its packed away and by the time I get it out the craving has passed. Its for a quick fix of the old days that will never make me throw out my older consoles.