But I got an Epson printer (Stylus NX420.) Strange that they'd offer two different brands. I don't know if this particular Epson is any good, but I've usually had good experiences. (And hell, free after rebate. Even if it's just marginal I'm sure I can find use for a Wifi-enabled printer/copier/scanner!)
You got the HP one? How is it and how did you decide that one over the others? I might use it for only scanning but not printing - how is the scanning, and how is the wireless? I assume you can scan and then wirelessly send it to your MBA?
I believe only two are at or under $100 - HP Deskjet 3054 and the Epson Stylus NX420? Is there even a third option that's at or under $100?
Printer manufacturers lose money on the printer and make it all on the ink. Check online reviews to see what the cost per page is. Alternatively, see how much the cartridges cost and how long the ones that came with the printer last. Either way, you are covered for now for as long as the cartridges last. You might find it cheaper in the long run to go with a "more expensive" printer.