I read that there's an Atari out there that has the 2600 works minus the cart. Of course there is a supposedly easy mod to add cartridge input. The Atari Flashback 2 goes for sometimes 10 bucks on Ebay so it's worth looking into.
I found my NES minus the cables (power AND video) so I'm debating on that retro duo, or possibly it and getting the cables. Mine is the second gen NES which supposedly fixed the bugs of the first one where you had to blow on the cartridge.
What did blowing on it do anyway? Some say it removed dust. I wonder if the moisture in your breath helped the contact points though. We need to run an experiment.
Nun sacciu, nun vidi, nun ceru e si ceru durmiv.
I know nothing, I see nothing, I wasn't there,
and if I was there, I was asleep.