Just got one of these in the Valpak today and ordered both. I'm sure these are highly subsidized, but might as well take advantage of them while you can.
Go to www.columbiagasohio.com/e-store
and set up an account. You can pay via credit card. The shower head is free. The thermostat is $4.95 (normally $34). My kids brought a few of these shower heads home when the utility company visited the school. I thought I'd hate them, but they are the best shower heads we've had in this house. We've got a programmable thermostat, but I'm sure a family member doesn't. They're great to kick the heat and air down while you are at work/school, as well as through the night.