If you have 42 bitcoins you can preoder one 60GHs hashing monster from Butterfly Labs, one from Avalon or you can buy shares from ASICminer (we will treat the shares as a virtual hashing monster with 60GHs in this review). We want to know how many coins we can mine during the rest of 2013. First we have to make an educated guess about the future hash power of the whole network. Our assumption is 50THs avg. hashing power for Q1, doubling every three months resulting in 400THs for Q4 2013. Using this simple model we earn 360BTC in Q1 and 45BTC in Q4.Modelling the virtual hashing device is tricky. I start as simple as possible and will refine in later reviews. 400k shares represent 12THs. I value one share at 0.5BTC. Consequently giving the virtual device a value of 1000BTC (60GHS). I assume ASICminer adds 48THs in Q2. Resulting in one device for 50% in Q1, 6 devices starting in Q2. Sure there is additional value, but in this model I will assign zero BTC to keep it as simple as possible. This virtual device earns 360BTC(share of 12THs) in Q1 and 1890BTC(share of 60THs) in the rest of the year. We bought the shares for 1000 and received 2250BTC. Giving the virtual device a BTC Multiplicator of 2.25 (one BTC now gives 2.25 in one year).If you preorder an Avalon now you should start mining in first halve of may. Resulting in 225 earned coins. Multiplicator is 5.2.If you preorder a Butterfly device you should start mining in june. Resulting in 196BTC and a Multiplicator 4.5.Concluding all other things equal (of course the NOT, but we have to start with a simple model) the review ends with:Avalon 5.2, Butterfly 4.5 and ASICminer 2.25. Thanks for your time and I am looking forward to your comments.UpdateASICminer paid 3860BTC divindends in first week. Friedcat will publish further project plans including trading of shares shortly.Shares costed 0.1 during IPO 400,000 shares. About ~163962 shares will be paid back to 0.1 in dividends before the other shares receive dividends (early return). Right now hashrate is upwards of 5TH, but deployment of 7 more TH is likely in the next two weeks. Deployment of an additional 50TH is somewhat likely next month. BFL/Avalon are selling much more efficient boards, so depending on their rollout rate, ASICMINER could ultimately lag behind in node size. But production rate is unrivaled.