Forgive me if this is a stupid question....I don't program or know ANYTHING about hardware, I just play games. But I'd sure like to have one Atari that handled all my needs. I only play carts. I'd love to be able to play Atari 8 bit games (400/800/XL/XL etc) on my 7800. (I saw the 2600-to-5200 converter on ebay, I think that is what made me think of it).
Conversely, I'd also be fine playing 7800 games on my Atari XE. Either way, though honestly I'd prefer to use the 7800 (I just like the looks of the system better).
If it's possible, please delineate between the "sure with some minor work, hmmm" and "yeah with tons of hard work, money, time, and crazy parts, so no not really in reality because it would never be worth it" types of possible.
Just throwing it out there that if price was reasonable (sub 50$) and it was a nicely designed piece (not just a raw board or something but a finished product) I'd sure as hell buy one.