In exactly the same boat but brassed off that you cant try them before you buy - I bought a set of Klipsch customs in ear after reading reviews and then ended up having to sell them as they were absolutely rubbish
There is a massive Curry's near me and I was pleased that they have the full range of shure, denon and sennheiser and the shure stand has a big sign on the display saying "Ask now for a demo"!!
Great, I thought!

I went to ask and the guy said "we don't do demos"


Have a guess where I told him to put the sign