Amazon and Gamestop/EB Games are now giving out pre-purchase codes (include BWE access, 3-day headstart, and Hero's Band) when you simply pre-order the game (confirmed by multiple users on Guru and advertised on their websites). So if anyone was on the fence about getting this game, you can now try out the betas (including this upcoming one) without having to pay for the game in full.
On another note, how do pre-purchasers feel about this? I'm glad that the playerbase for the beta will be expanded, but I'm not too thrilled about pre-orders getting the 3-day headstart as well (I'll be scrambling to secure common one-word names at that time lol, and the fewer people, the better). In the end, I feel like Anet was being dishonest with us (I'm sure a lot of people would have pre-ordered instead had they known they could get the same benefits minus the first BWE).