I am a member of three frequent flier programs, Qantas, Virgin and Singapore, and get frequent updates, offers, and spam from all three, all ignored.
I know where and why my business is split, but they do not, and none have ever asked me the question, although it would be very valuable information to have, not just for me, as my expenditure would hardly rate as significant, but at a macro level. If they had the information, and could mine it, and develop programs that may make them more relevant to me, and presumably many other consumers.
Well, that is coming.
The emerging location tools of the mobile world are going to offer the possibility that Qantas will be able to track my presence in an airport and know when I am not booked to travel with them.
Intrusive perhaps, but valuable consumer share of wallet information if they cared to ask why I travelled with one and not another in any given circumstance.