Historic break even points and BTC/GH prices

[Tovadnok]

It would be useful to know which companies have historically charged fair prices for their miners and resulted in break even or profit on the investment.

To determine this, please post here:
- The manufacturer of your miner
- Price in BTC that you paid for the miner. If you paid in dollars or another currency please post the amount in BTC at the exchange rate at the time of purchase
- The dates of purchase, start mining and break even.
- (optional) profit since breakeven in BTC.

It is very important to post the price and breakeven points in BTC to allow comparison to buying BTC instead of mining. Once enough people posted I will collect the information in a table.