Like others have said, they should let you shoot it if you're going to buy it. My local shop will let you shoot them if you're seriously looking. Also if you buy you get an hour of range time with one of the owners who will set everything up and sight the bow in for you and let you shoot. It's a big help to first time owners or people who don't know how to set up or tune their bow. If a shop won't be helpful, find someone who will.
-Jake