What this should matter to end-users: Nothing. If you want to get into mining, it's all about the economics of running processors (consuming electricity) and probability of solving blocks.
Electricity is fairly cheap from what I understand, does this meen the cost of electricity is really going to effect your profit? or income? if so I cant see how anyone would make a significant amount of dollhairs
Where I am, electricity is fairly expensive. But you can find out yourself if you are (or would be) mining at a loss or win with
you can find on the web.