I could never really see that huge of a difference in Blu-Ray movies. At least, not to warrant buying a player for. I had a PS3 for a while, and started renting some movies in Blu-Ray just to see what it was like.
After I got rid of the PS3, I really didn't miss the Blu-Ray capability, and I still just watch good old fashioned normal DVD's. Maybe my eyes are bad. I've got a 1080P 46" LCD, but just didn't see it...