Quote from: ranochigo on July 11, 2014, 01:58:08 PM

Quote from: wunkbone on July 11, 2014, 01:54:43 PM

Quote from: nickgaff on July 08, 2014, 04:51:20 PM

If your power is free you ROI Wink

Wrong, your ASIC don't mine forever, it will break one day...

It may or may not last forever, however, we are all certain that difficulty will increase very fast so that it cannot be profitable any longer for that ASIC.

The difficulty doesn't need to increase at a high rate for a miner to be unprofitable. The miner just needs to cost too much up front relative to how much it will earn. If all the manufacturers cut their pricing in 1/2 then pretty much every miner (except BFL Mondarch) would ROI. The problem is that as miner gets close to being a good buy tons of people jump on it and drive said difficulty higher. Vicious circle.