I just checked my receipt, and it says wristbands will be mailed out in early March. That's surprising, since two years ago I got my wristband the day before I left, which pissed me off to no end. What if I was planning on leaving two days earlier?
So early March, which could mean as late as March 15th, but should mean March 10th at the latest. Email confirmations should be any day, unless they are completely full of shit.