I think the limiting factor is how much hard drive space you want to take up with coresident games. If you use a blue ray, you can load a significant amount of content from disk. Otherwise you&#x27;re forcing your players to make tradeoffs based on how much space they have left which would cause first releases for a system to have a natural advantage over later releases (sales wise) as HDD space fills up.<p>Edit: Fair enough, it seems games are doing this already, so maybe this argument isn&#x27;t as valid as it used to be.