Re: [65000 GH/s] Slush's Pool (mining.bitcoin.cz); TX FEES + UserDiff; ASIC tested
Interesting. I try to present a similar concept when I get asked about operating expenses (hardware, power bill, etc.) versus BTC mined. For example: if mining one BTC ends up yielding a negative bottom line of -$100 (technically a loss) after all the operating expenses are applied, it can be argued that it is akin to buying one BTC at $100. Therefore, based on the current BTC-USD average exchange rate of $138, it would then be an excellent buy. It's all relative.
In that case, you hace counted the coins' value twice.
Unless, of course, "if mining one BTC ends up yielding a negative bottom line of -$100" does mean you have counted costs and not subtracted the coins value yet.
But with a GPU, you definitely use way way more than 138$ on energy per coin you mine.
The "i convert currencies" explanation is perfectly fine, its just interesting that some trade a BTC for 300$ using the GPU, which is loud and hot in your room all the time, instead of buying from some guy at 138$
Not paying for energy could be one good reason, but there are stories where the miners found out these kind of deals can easily get cancelled when they start consuming way more than before all the time. The only explanation where i dont feel someone is really mis-calculating, is "its my hobby, i have no problem with my hobby costing money".