Ok, I'll type this slowly for for the reading impared.
My suggestion to turn the thermostat down to the 50-60 degree level was not intended for those who can afford to keep their heat at whatever temperature they deem comfortable. It was suggested only for people who's financial situation would not enable them to heat their home all winter at their preferred temperature. Rather than using up their budgeted amount of fuel (oil, gas, etc) in a month at, say, 72deg, they could potentially run longer at a lower temperature.
If you can afford to heat your home to 72deg (or whatever you choose) all winter, by all means do it. If you can't afford to do so, you might consider turning it down to 68, 60, even 50deg to meet your budget.
Now, was that so hard to understand?
Chris