Being in marketing and PR, I asked our marketing researchers and they said the CF/EN tend to be huge savers and account for a huge share of the financial services industry marketing. We tend to have larger bank accounts versus the breeders as a percentage of total household income and also tend to have less debt relative to our assets. We also tend to be more highly educated, less socially and politically conservative and better adapters of new technologies and emerging industries.
Traditionally (and I do mean OOOLD tradition), the largest adult (not in the "X" rated sense) CF/EN market segments were the senior citizens, gay, single and DINK markets. The gay market is one that many companies go after, because the gaybee boom is really not that large relative to the single segment. Single moos and duhds have taken a fair chunk out of the purchasing/marketing power of that segment and the DINKs tend to spend a lot of money but in a different manner.
Senior citizens and pre-retireds have the largest bank accounts and are the largest customer marketing segment for the financial services industries. Breeders are on the low end of that sector.
Just some observations I make after talking to our research folks. Funny what you can learn from economists!