Adding my 2, er, cents. Ideally, these maps would have been included originally, or if it was impossible to release them properly in time for launch...I dunno, differently. I know MS doesn't like/allow "free" updates, but $10 for 3 maps, splitting the multiplayer population only a month later? Really?!?
I already spent $60 on release day (my one full-price gaming splurge this year) there's no way I can afford/justify this. Some of your loyal customers* are real people with jobs and families. Sure, Valve is now monetizing the BLAM out of TF2, but at least I've recieved several new maps, gametypes, heck, *hats*, for free. I expected better of Bungie.
*Since Marathon 1/2 on the Mac!