Well it depends on this.
If blockbuster considers GameRush to be its own store. If they consider it a department of the store you might get less, this is a big might.
Staples pays better than blockbuster, but lets just say department heads (me) make around 27,000 a year not including possible monthly bonuses. So a manager would make a lot more. Of course this is for a full blown store so I dunno.
35k sounds very reasonable tho. Because when you break it down hourly its about 17 an hour maybe which isnt THAT big a wage really. And if youre going to be full time devoted to the job they need to make it a job that you consider a living wage. Make sure they recognize that in order for you to commit to them, you need them to commit to you.