very sneaky renee... but i'll try it.
i haven't had much luck with FB in general, but I have spent some time building out one of my pages. i've threaten (to myself) to spend a lot of time/effort in promoting my social sites, but something always steals my time. i think you've got to have a "respectable" presence in the social world at a minimum.
regarding the poll question. i've found very little bang for my buck with FB ads, but it's been awhile since i ran a campaign. the CPC is pretty high and its a long term investment, but I think it could pay off in the long run if you're smart about what your promoting.