Wii was the only console I ever bought. I prefer playing with keyboard and mouse, so consoles were never really my focus.
I had a lot of fun with it, it had some amazing games that made good use of the controllers. It was a great family console that even older people or people that don't usually play could use.
It was also great at running old school emulators for other consoles (SNES, Genesis) after some tinkering.
It also drove home my main hate regarding consoles: they are closed systems, owned not by you but by the manufacturer. The games were and still are expensive, unlike PCs where games get cheaper over time. They can also disable the servers providing services for your console (news channel, weather channel) when they feel like you should move on and buy their next console.
So I won't buy another console again, even if I still love my Wii, that I power on occasionally.