Can you game exclusively on one system or do you need a mix?

[Weedlab]

Hey folks! I'd like to know just how many of you can game exclusively on one platform for an entire generation (or generations from a single platform provider). I personally can't do it. I love Sony's offerings but I also love Nintendo's stuff, so at the very least I would get a 3DS (but some don't count handheld systems as deviating, but still ... I plan on getting a Wii U anyway). I understand there are some 'purists' here so it would be interesting to see just how many people here adhere to a specific platform. So dudes .... one box to rule them all or do you need a combination to satisfy your gaming needs? If you can game exclusively from one provider ... why is that?