I've had one since December 2013.
Given my time for gaming is extremely limited, having a Wii U makes a lot of sense. I buy the exclusive titles I want, and don't miss out on too much. I'm also more likely to actually finish the games I do buy. With digital, Virtual Console and a 3DS, I'm not managing to keep on top of everything I want to play.
I'd love to have another console or a gaming PC at some point, but it's a question of finding the right balance.