I love Shaun of the Dead. One of my top ten movies ever.
So I had crazy high expectations for Hot Fuzz, right? Saw it in the theater on opening night and... I was sorely disappointed.
And then I saw it again on HBO and, expectations appropriately lowered, I really liked it!
What I'm trying to say is: if I had a Blu Ray player, I'd get the movie. It's no Shaun of the Dead but it's good in it's own right.