I am a loyal Amazon customer, however, I found a projector here on CompSource for significantly cheaper than on Amazon (or anywhere else online). I chose CompSource (over another online retailer, who had the projector also at the same price) because CompSource had an option to expedite my order.
I ordered the projector Friday at 11 a.m. and received it on Tuesday, using the free shipping offer. Almost every other online retailer with a free shipping option usually takes 5 to 10 business days. (Other retailers also almost always wait until Monday to ship ordered received on a Friday.)
If you have a big order and want it fast and cheap, use CompSource.