I agree with josten, it may be worthwhile to check out onecall and vanns.com. Both have various KEF models for about 50% off, and are returnable if you haven't heard them and end up not liking them for some reason. I actually ordered a pair of IQ5's and an IQ2 to replace my Cambridge SW on Sunday from Onecall, they shipped out yesterday and should be here before the end of the week.
The IQ90's are probably just too new for anyone to have heard them yet. Of course being the newer version, you'd like to believe they're better, but just by how much isn't going to be known for a little while yet.