Field & Stream has a mediocre selection. Mostly sub-$50 blister pack stuff, but some $100-150 knives at the counter, but it's hit or miss on what you'll find. There's one in Washington County, and I think one in Cranberry.
Cabela's down in WV has a slightly better selection, but you're still not going to find anything above a medium priced ZT or Spyderco.
Most gun shops around here sell cheap Chinese junk (if they have anything at all) but one or two have nicer stuff... (I think ACE Sporting Goods is a Benchmade dealer)
But really, that's about it that I know of. You're definitely not going to find a shop with much more than the basics. And even at that, you'll find they only stock the most popular models.