Nope, it makes you a consumer that wants to make some money.
The way I see it now anyway.. is this.. I've always been a 1 console kind of gamer, meaning we always had Nintendo in my house, it was the way I was raised, as my parents == Nintendo fans. We got a PS2 when I was about 15 or so, my dad's outlook on Nintendo changed entirely... at that point, as did my mom's when she got a hold of some of their platform games, not because... Nintendo as bad, or the graphics sucks, but because it gave us something new to do.
Sometimes you just need to have something New. I want a Wii really, bad, but the question is, will I play it? -- That really is my only fear, at this point. My life is so unorganized right now, I don't have much spare time where I just sit and do things for me... i do other things for other people, and work full time, which makes me tired come the end of the day. Grandpa always has news on, so that pretty much takes up the TV (at least the living room one) my TV (as sexy as it is) I don't use it much... yet at least. -- I haven't since I got Phantom Hourglass, before that I was trying to beat OoT and OoT MQ on my GCN--after beating TP).
I say sell it, it changes nothing at all about your feelings towards Nintendo, if you can get a few hundred bucks for it, buy something nice.. the great thing about Wii's is they're fairly affordable, at their price..
On a side note for bert, why a PS3?