That's an awesome resource, but I'm willing to except some blurred lines in order to simplify the query greatly. Such levels of specificity would be alright if deciding whether to mine at 550 vs 575 dollar exchange rate, but probably not necessary if you expect current volatility to continue, if not accelerate.
Of course if one expects such a thing, they should maybe just a buy a coin anyways. I'm not really interested in mining as I feel price is always going to keep the pool crowded, but I am interested in the price action and analyzing it technically and fundamentally. For that I need more a feel of the average cost of miners than one specific mining rig.