Your titles may not be in stock at the one in Pennsylvania, so the one in Texas ships to you. I live thirty miles from Seattle, I just got a game on "medium" availability and it's shipping from Cali. The other games I've requested had all been "high" and "available now". So that's my guess. Hope it helps.
It'd be nice, and yeah... keep ya waiting longer for those new titles so they can keep charging you. It's a business. Play a couple older games and keep it on the top of your Q, it'll eventually be shipped to ya.