Thanks guys, great advice.
Yes, I used to get old TV games from local trade mags, online auctions etc, and I ended up with a room, basically of crap.Tons of stuff, not complete, bits here n there, etc. But I did keep my g&w's, and the Tabletop Coleco Pacman!
So by going for a specific unit, that might be fun and make sense to do that. NGPC is a great suggestion, requires little room and is an excellent unit with top games. I had thought of Lynx as well, I always loved that.
Colecovision came to mind as did Vectrex because not only did it have top notch games, but the bits n pieces & peripherals like screen overlays, expansion modules etc may be fun to seek out.
Magazines also came to mind too- The original '80s Electronic games mag would be something I'd love a set of