You can get a fairly decent one for about £45 now so yes. I love mine and dosee the difference between bluray and DVD. Sky hD is pretty **** compared to bluray and 1080hd
ive got a bluray and they aint expensive now, about £40 should bag you one, they play dvd too so you can get rid of the DVD player.
If you have a HD tv the difference is very noticeable, pure, clear high detail pictures, everything is going that way so i would if i were you.