I have to chime in here. I bought one of the "official" Sony cases (without light) for my PRS-650, and was quite disappointed at what I got for my $30 (here in Canada—less, no doubt, in the States): Essentially, two pieces of stamped vinyl with two little plastic pegs to go in the Reader's holes. For that kind of dough, I expected something a lot more substantial. Isn't the idea to make you feel like you're holding a hardcover book? That sure didn't do it.
I took it back, and for the same dough, I've ordered
this cover, which
looks much better-made... I haven't received it yet, but when I do, I'll let you know.