If that is the case, I would go with your favorite library of games, and if not that, then go with the console that has your favorite game. I recommend the NES not only because it has an amazing original library, but there are also still some small niche studios making games for the NES today and it is amazing what they have learned to squeeze out of that hardware.
It depends on my mood, really.
I kind of know how to repair them, though.
Fixed a Dreamcast, Nintendo 64, and somewhat fixed a Saturn that won’t read cartridges well.
If that is the case, I would go with your favorite library of games, and if not that, then go with the console that has your favorite game. I recommend the NES not only because it has an amazing original library, but there are also still some small niche studios making games for the NES today and it is amazing what they have learned to squeeze out of that hardware.