I had Perfume pre-ordered from Amazon for £8.99, but I couldn't resist that slip. £7 for a slip...
I want my head examined. Some of their slips are gorgeous though, Amuck in particular. The full artwork also hides the Italian Collection's horrid Arrow window box-like cover art, and the increasing amount of blue cases.
It tends to be just gialli I've bought slips for though, excluding the crowd-funded titles. I haven't picked up any slips for the Asian line, and I'm not sure I intend to bother with the Vault line at all. It's rare I pick something up from the slasher line any more, because I tend to already own a copy from another label.