I used to go to a nearby Blockbuster. It is very large but still lacks choice.
I don't know if this is typical but this Blockbuster is very disorganized. They usually are sold out of the newest releases on the first week or so after release.
What happens when you do find something you want is it takes 2 or 3 minutes for them to find it in one of their many drawers. When you get home the disc is often not in good condition (I have had 3 used games that were completely unplayable - they do NOT check the discs!).
They also ask you for a receipt when you return something, however they do not give out receipts unless you ask(?) This is terrible.
I have given up and switched to an online rental service which is giving me much better service (and there is no temptation to stock up and popcorn or ice cream!)