Mining feasibility

[ridertiger]

Can someone validate this assessment for me? It changes based on prices but on average it sounds about right:
For each GPU you buy, it will take you 245 days to get it paid off at current profitability, assuming that stays constant, and we all know it won't. Same for ASICs.
you factor power into the profit margins from the start, so that's accounted for in your ROI calculation.. if you bought bitcoin now in the same amount you spend building a miner or buying an ASIC, and then compare profitability in a year, you're going to have more if you just buy bitcoin. Mining is done for now...

[Munareal]

Mining will not give you your ROI because of bitcoin mining difficulty. The miners could breakdown..Mining is not cost effective because of the cost of the miners , shipping fees,electricity expenses and other cost. Buying bitcoin is cheaper and more profitable.

[ridertiger]

Yeah but what if the electricity is cheaper, lets say 5 cents per kw?