I think a major thing to consider is that the 360 has been out for ages and naturally has a vast software collection. When the 360 was at the same stage the PS3 is currently at, everyone was saying how destined for failure it was due to its shit, uncompelling game library. Weirdly, everyone seems to have since completely forgotten about this.
Make no mistake, some seriously good games will hit the PS3 regardless of Sony's pre-release marketing (which I think the negative aspect/criticism of was overblown, personally).
It's not like the Microsoft isn't massively deserving of criticism considering they've had 360s breaking down en masse since release and have only recently even acknowledged it and gone some way towards appeasing the huge number of people affected.
I'll get both eventually as I love games and will want to play exclusives (even if only time-limited exclusives) on both. Who really cares about the cost if you work, considering what you get in return? ![]()