Game Stop just seemed to spiral downward as the years went on. When I went there (Funco Land, Babbages, etc.) as a kid, the employees were helpful, courteous, and eager to answer questions.
Then, they started getting pushy. It's like they don't realize that no means no. No, I don't want to pre-order this game that. No, I don't want to subscribe to that magazine. No, I don't want to buy a protection plan. No, I don't need extra controllers or the strategy guide. I said "no" more times than I care to count, and the worst thing is that they have the audacity to ask, "Are you sure?"
Every store is different and I'm sure that there are still some great ones around. However, I have had much more negative experiences at them then positive ones and I don't see that changing any time soon.