JohnInKansas,

The reason they give you the mailer, and the store gives the paper, is to make sure you do not refill the cartridge. That way, the cost becomes a few dollars each to you, and per page cost drops to maybe 10% of what you pay now.

Color laser printer- $499
cartridges ( 4 required) $100 or so each.

Good thing it comes with a set of cartridges!