I've been there dude.
I stopped going to the closest shop because they don't carry new books/TPBs, and why shell out $5 for new single issues when I can get 6/$10 when they hit IST?
I stop at the shop half-way between work and home sometimes, because they also carry tons of books, some movies and games, and other comic-related stuff. It's a good place for me to find new TPB series that I'd be interested in reading or collecting. They have at least 5-times the amount of back issues as the shop mentioned above. They buy used issues all the time and put them at the front of the isles.
Sad story is, why stop in there when IST has everything 40%+ off? When you're reading stuff all the time, it doesn't matter that you get it a week later.
I've even moved on from buying the new Action/'Tec/Superman/Batman issues to just waiting for the next Rebirth TPB Volume to be printed and sold. There so much money saved for encapsulated comics that way.