I think the main concern, at least for me is just 1) the folks I wanna play with in my guild, that did get in, will be levels ahead of me already and 2) the chance of getting the name I want will be slimmer, the longer I have to wait. Those are the 2 things that bother me the most.
I don't care how many days of EA I get, I would of just liked to see everyone get in at once in order to be "fair". And since this kinda wave stuff has not been done in the past (as far as I know) it makes it seem even worse. Just my 2 cents tho.