Reliable - fair enough, you do win there.
Fast - don't really know what you mean here, but xBox games utilise more powerful processors, so xBox is infact faster.
Quality games - I owned a PS1 and PS2, couldn't stand the xBox (original) but the 360's games line up won for me. Personal...
I would cry myself to sleep every single night.
Or just sell the PS3, buy an xBox with tonnes of good games, AND have a big party with the spare money I would still have after all that.