preorder is always a bad deal
sp30 will earn much less btc than in hand hardware you can buy now
dont forget about hosting fees due to ridiculous cooling design
unit should be 4u and have 8x120 fans
also that promised specs can be not achieved,
remember terraminer or bfl?
What in hand hardware?
So because 2 companies which started as a scam failed/scammed you think that SP30 won't reach the specs? I know that you haven't really thought about it, but please do an effort to think a bit more.