I don't mind innovating when it comes to gaming, but to keep that innovation locked away behind proprietary consoles really sucks, especially when the consoles are lacking in power compared to other offerings, and also when a lot of the 'innovations' aren't really that great. I'd much rather be able to buy Nintendo titles on Playstation (my preferred platform) and purchase accessories if necessary. A lot of the innovations that Nintendo have implemented are gimmicky and not very good in general, and I say that having owned most of them at one point or another.
I don't necessarily want an 'adult gaming experience' from my console/games - I just want quality games that are fun to play and have a good replay value. Nintendo's games are great... I just hate their consoles. The Switch is a total piece of shit, hardware-wise. The joycons in particular are so fragile and prone to breakage that you might as well buy a replacement pair the moment you buy a Switch. It also just feels awkward as hell playing a Switch. It's not ergonomic at all, everything feels tiny (at least for adult hands) and the screen quality isn't very good. The Wii U was a joke. The original Wii was interesting when it first came out but for me the novelty factor wore off quickly. It was pretty fun for casual 4 player local gameplay, like if you are hanging out and drinking with friends or whatever... but for more serious gaming? Nah. The Gamecube had some decent games on it but for idiotic reasons Nintendo decided to not go with a standard DVD format and chose these tiny discs and weird controllers instead. The last decent console Nintendo made IMO was the N64, but even by then their main competitors had adopted CD-ROM as their format, which meant much better audio quality and more storage space for textures and whatnot. N64 was cool when it first came out but it has not aged as well as, say, the PS1 IMO. (PS1 also has vastly more good titles available for it.)
All that isn't even getting into the true handhelds and the gimmicks wrapped up therein. I have a soft spot in my heart for Nintendo but in recent years I've learned more and more about how they suck as a company (there's so many YouTube videos on this) and that combined with the gimmicks and games that never go on sale is enough to keep me away. Nintendo's online gaming service is also absolute garbage compared to Sony or Microsoft. Right now the best value in gaming is a used PS4, hands down.