Ill entertain alt coins but I'm sticking with bitcoin for now. I personally think GPUs are still viable, all that garbage about power usage is horseshit. If you wanna save some money turn off the extra tvs and lights in your house and youll make your money back. Its beyond me why people are turning off their rigs, especially when you cant get good asics yet. I view electricity the same as i view gasoline your gonna buy it doesnt matter. Plus i actually need 3 dual output cards for my screen so its all a wash for me....
You aren't being rational. Mining using a GPU takes
extra power. While turning off the TV and lights will save money, mining will dump those savings down the toilet. You can think of using electricity like using gasoline, but don't tell me it doesn't matter if you drive an extra 100 miles a day.
If you want to mine using a GPU because it's fun, that fine. But, don't be confused about the fact that you are paying extra for those bitcoins.