Depends on hours

Like if a game will only have 20 hours play and I'm done, not worth it. I wouldn't even buy it new. I would wait until it's for resale.

If i think i can play a game or console for at least 6 months it's probably worth it

And if it's an old hackable system, then i will just buy a flash cart or do a ode mod or something and get the games for free