I couldn't afford it if my heating bill got as high as $70 (or my cooling bill, for that matter). There are rooms in my house that only get used during the milder times of the year, when temps are between 60ºF and 85ºF. Blankets hang in front of doors, carpet covers the inner side of the 2 exterior doors, windows are covered in winter-proofing film outside and in, draft dodgers block the undersides of every door and window, and my heating consists of an electric blanket and the occasional use of a single space heater. The average winter temp inside my house is 45ºF.
In summer, the winter-proofing film comes off, and my house become breeze-central, with fans in the windows to either bring cooler air inside or blow the hot air outside. The blankets stay up because I do have one window unit, but it's small and can barely manage to cool one room down to 80ºF in the hotter times of summer. Once the temps hit 90ºF and above, the rest of the house is pretty uninhabitable. The average temp inside my house in the summer is 95ºF.
I understand that people who've never dealt with the urgency to keep utility bills as low as possible year round may be freaking out about the need to do so suddenly because of a freak weather pattern and huge spikes in fuel costs. I feel for the woman in the article who routinely spends more on fuel than I spend on my mortgage and utilities combined, but if I could afford her fuel costs, I could have heat and cooling installed in my house and let the utility bill rise as high as $100.
As it is, we huddle in one room most of the year.