I haven't bought a console for gaming since my PS2 around 2002. I bought a PS3 in 2010 for a Blu-ray player and a good 15 or so games but haven't played one yet. I use my PC for everything. I'd say 1997 to 2003 was the highlight of gaming for me but because of money and getting older I lost interest a bit. Looking at the Wii U lately it sort of reminds me of when I was a kid and Nintendo had all their crazy new stuff. It makes gaming seem fun again and has caught my interest. My PC can do everything and more when compared to the Xbox One and PlayStation 4. The only things on those systems that interest me right now are the next Metal Gear Solids, Grand Theft Autos, Final Fantasies, and Gran Turismos/Forza Motorsports. There's a possibility the first three will come to the PC so as of now I don't want those systems. The Wii U is reminding me of when I was a kid playing Mario, Mario Kart, Donkey Kong, Zelda, etc...just as the 3DS is with it's games and new ones coming like Pokemon X & Y and Link Between Worlds. I could seriously see myself getting that Zelda Wii U bundle soon.
I think people who have completely matured will look at Nintendo as a dinosaur rehashing the same things over and over again, but for people like me, they remind us of how great our childhoods were and how we can make the past even better.