20-30 somethings? Most likely to like the arrangement. In general this generation like to be apart of a collective, not an independent agent. irishenvy.com has a lot of these folks and they are more open to full membership.
40-50 somethings? I am in the range (lower end). This is the most complex of the group. Many have not seen ND win consistently in their lifetime and can be indifferent. But there is a strong majority that likes independence.
60+ somethings? This is the most definitive out of the bunch. They are independence or death. On top of that they are our money people. Most of our mega donors are in this age group.