Implying that this light bulb will save you money would imply that you're terrible at keeping your lights off, and thus you should save money by continuing to exercise bad habits that cost you money.
The way I see it is, the problem with energy consumption in households usually stems from the consumer' habits, and not so much from the equipment used. People are terrible at turning the lights off. Just like my roommates. If I don't turn the lights off, no one else does.
Disclosure: I work for an energy efficiency company and basically telling people to do turn off / lower the settings is our business: opower.com.
We humans are quite bad at rote work...
A modern TV might be 100 or 200 watts.
Saving 80 watts in a 2 bulb fixture starts to compare to those numbers.
Heating and cooling, lighting does not compare to.