I know what you mean. My wife doesn't care, as long as its warm. She likes the $35 gas bill too (cooking, and hot water).
I only seen one season of natural gas heating bills for our house, we just moved in here Dec 05. So I do have somewhat of a baseline.
You think your nuts? I weight all the coal going into my stove, put that in a spreadsheet once a month. Then go to a weather website that shows the heating degrees, so I know my cost per heating degree(heating degrees don’t account for wind, just temps over time lower than 65 http://en.wikipedia.org/wiki/Heating_degree_day
). I'm hoping that my cost per heating degrees will be lower with coal @ about 180/ton, than my 92 efficient gas furnace. So far it’s too hard to tell with the warm weather we had last month... but it sure was warm in here. Oh yeah the gas furnace was set at 65 in the cold days, 65 is a sin burning coal… its been 73 all day inside.
On the natural gas, I don't figure in the taxes or any devilry charge, just the straight bill total / CCF used. Then I get cost per CCF, and go from there.
I do the same for my electric, and since mid 05 I've been tracking my gasoline mpg, gallons and price per gal for my autos. That’s nuts.