Game Masters is a Pittsburgh gaming institution and has been around for ages under the same owner. In terms of games knowledge, I have yet to meet an owner who can out-do Phil. He really goes out of his way to make sure he understands everything he's selling so that he can make good recommendations based on your personal tastes.
This store is very bright, very well lit and extremely friendly. Walking into Game Masters is like being greeted by long-lost family every time. This is a great shop with a great selection and very good people. I can't recommend it highly enough!