I used to buy gasoline for 2.50, I used to fly to Chicago for $225 but things have changed as business improved. Yes you need to pay more because Staples needs to make a profit. Are you going to continue to buy from Staples or move to one of their inferior competitors?
So as a regular customer how much did you spend at Staples per month, per year? I am certain that your business means nothing to them. Large corporate customers buying millions per year and large retail customers are who they care about not the individual looking to spend a few dollars with a coupon.