I'm getting the same feeling from the cloud mining I bought. I paid $300 for 4 GH/s for a years contract back in August. Now I'm looking at BFL's pre-orders going at like $10 per GH, I'm totally depressed.
At this forum, BFL is trustless even BFL says the pre-orders are all sent.
before October, Pre-orders should be considered, but not BFL ones. Kncminer does the good job. Plus these big players in mtgox, I pay less bitcoin for more fiat (In total, USD 4,000, Even I have arranged how to, right now, 20% of the input).
Don't trust any what BFL said. BFL can just perform the same trick again on 28nm products. Based on Kncminer real design, there is no 600Gh/s@ 300 W in 28nm format. If you study carefully, then you know which you should select.
Please play smart and pay smart. I know there are some people which hate to pay commission much as 1 BTC is just a 70 USD thing. I use this amount to estimate the worst case.
To play, Simply use Namecoin on cex.io. Namecoin becomes little more famous because of the acceptance.