The Universal Monsters legacy collections are currently £11.99 each on Zavvi, the offer sold out pretty fast last time they did these so cheaply so don't snooze on it.
I just ordered Frankenstein Legacy, I already have the Dracula one from last month when Zoom had them cheap for a flash sale.
It's a shame that so many of the films cross over into the different sets, you end up with multiple copies of certain films