They'll eventually become collector's items, although at a much slower rate than previous generations. People are aware these items could be valuable in the future now and are less likely to part with them. The days of someone selling their entire collection for pennies on the dollar are over, same with garage sale rarities and such. It takes a few seconds to look up how much a game or console is worth instantly now online. Give it around 10 years before current-gen consoles will be considered classic collector's items. Especially, considering the digital nature of future generations. Nostalgia is eternal.