Well yes, you wasted your money, but on the bright side, it would be wasted in any case of a games console. To invest means to put money in, in order to get more money out, consoles don't do that. They give you fun, but that's not investing, that's simply buying. Perhaps if you wait a few decades and then try to sell it, you might get more money for it being a retro thing. 🙂

Jokes aside, if you don't like it, then get rid of it. Chances are you could get a different used console for the money you get from selling this one.