My computer broke and all I had was PS3 for awhile. I know that I would like the option to turn my PS3 into a computer again in the event that something like that happens again.
Besides, they advertised that PS3 had OtherOS, and sold them with that OtherOS. It is considered false advertisement to some, even though on the other hand, Sony has all rights to their products..
But for example, it's like buying a book, only to have one of the pages taken away from you before you really even get to it.. One of the more important pages too.