I have an atari 7800 and some controllers and a good amount of games most with their boxes in near mint condition. I will provide a link to what I have. Is any of this worth much or...?? just very curious.
Probably not as much as you could have gotten a few years ago. Vintage atari stuff was going for quite a bit at one point, but it seems to have calmed down somewhat. Anyway, you can probably get $40 or $50 for the system and accessories (maybe a tad more since you have some extra controllers). For the games, maybe $200. That's assuming none are rare or sought after. These sites should give you an idea of what you've got:
http://www.rarityguide.com/atari7800_view.php
http://atariage.com/software_search.html?SystemID=7800
It's actually a nice little collection. I'd consider keeping and displaying it if you're not hard up for money or short on space. I can't guarantee it will be worth any more down the road, but it will probably look good on a shelf : )