Gnizmo on 14 March 2010
I am going to go with a definitive no. The only time people even pretend to not want a game due to it being multiplatform is if the game was "stolen" from their console of choice. Admittedly there is a section of zealots that back any game exclusive to a platform, but they are an extreme minority. Given an equal level of marketing, making a game multi-platform will always result in increased overall sales.
