I would say that if a retailer isn't going to let you try it, then don't buy from them. But I know why they have probably said this. A lot of retailers are been hit hard by the internet giant retailers. You know, someone comes to a store, and then they spend time helping you to select a carseat, check it fits, and then at the end of it you leave and order it online for cheaper
I bet if you went back there and said look, I shall be buying the seat today, from you, then they will be more helpful
As for things to consider, have a read of this thread for some legal and general tips on buying.
http://www.mini2.com/forum/minis-chi...e-parents.html
Then all you need to do is find the right retailer and they will do the rest of the work
