It's already down from £89 to £60 and the 6 disc collection from last year is £29.99(cheapest i've found) from last year and it's not as good as this one.
8 Harry Potter films cost £30 to me. The films are quite old in comparison. £60 for 8 films is £7.50 per film, which isn't bad at all, but should come down further. I'm in no hurry.