I'd be curious to hear what everyone's experience or thoughts are on the various contractor services / bid programs offered by all the big box stores. Which one do you use, which do you prefer, and what about the specific store's program makes it better than the others?

I'll provide a brief summary of each from what I've learned speaking to the stores:

Home Depot - Loyalty credit card with a small % rebate on all sales. They also have a bid program where you can submit an order of $2,500 or more. They'll give an itemized discount, which varies from item-to-item.

Mendard's - Loyalty credit card with rebate as well. You build up a $6,000 minimum on your card and once that is exceeded, you get rebates on all the previous purchases + future purchases. Along with that you get a flat 2% discount on everything.

Lowe's - Loyalty credit card with rebate. Similar to Home Depot, you build out an order with all the items that you want and they send the order off to Corporate who provides an itemized discount.