I own both consoles, and even the PS3. And I had to send my 360 in for repairs because of 2 red lights flashing as opposed to the usual RROD wich is a different issue.
My 360 was in repair for 6 weeks and I got no replacement SKU for it. No way my wii in case of cleaning will be gone for that long. And there's a big psychological difference between having a broken system or having a bad lens. Most people who can't play Brawl will blame their copy instead of the Wii.










