I hate having to collect specific hardware for specific games, that's the single reason why I never buy consoles anymore. It just feels very wasteful and becomes a storage headache over time.
You can probably get a used Wii U for cheap. It doesn't have a lot of interesting games, but for a low price, it's likely worth it for the Mario games and Zelda, and a few more.
can be hard to find though...I mean Nintendo effectively discontinued it so it isn't on any retailer shelves now.
Don't know where you live, but here in UK both Game and CEX(sort of like Gamestop in US) are full of second hand WiiUs, I guess a lot of people traded them in before the switch launch.