The thing is that if you've been in this for a while, or have money to burn, then no biggie on a pre-order to keep up with the arms race.  Some of us are relatively new to the scene.  Take my group, for example, we've got thousands sitting in an account waiting for us to make a hardware decision, however it simply isn't worth investing at this point because there is no clear quasi-safe move.  If we were mining since 2010, had a BTC wallet as fat as a cow, and could pay for all our pre-orders with either BTC direct or by doing a small dump to an exchange, that's a different story.  But people putting fresh cash into pre-orders right now is kinda nuts.