Given Oblivion and Mass Effect were each on one disc, and LO works fine with 4, I'd say that any advantage of Blu-Ray for gaming is yet-to-be-determined. The disadvantages on the other hand are clearly visible with higher console and disk costs, not to mention slightly slower read speeds.
What will be interesting is whether Blu-Ray gains enough market penetration to force MS to include it in the next Xbox console. If it doesn't Sony will have lost an ENORMOUS amount of money subsidizing blu-ray, and simultaneously sacrificing their console dominance. If it does, then I'm sure MS will do it, and Sony will not have an issue with it. As rocketpig points out, Sony couldn't stop it if they wanted to.
starcraft - Playing Games = FUN, Talking about Games = SERIOUS
