Mike,
If I move down to Dallas, DAC is where I might end up. I am not a big fan of the courses- they're certainly more than I need, but I've become fond of the aesthetic promulgated by this site. Though the bones of the courses are Plummer's, Nicklaus has his fingerprints all over them. At this point in my life, walking and getting around in a reasonable amount of time are key. I am unsure that this is possible at DAC, an excellent club for competitive golfers.
Regarding the 2X question, I was not referring to a particular club. There seems to be a log jam of various degrees at the five major clubs in Dallas. While I agree completely with Jim Hoak's praises of TF, to the best of my knowledge it has not relieved the demand for memberships at the Elite Five (my coinage). The last I heard, Dallas National with the best course in Texas IMO, has but a very short wait list if any. Maridoe, arguably one of the most difficult courses in the state and among the best financed, is welcoming prospective members.
I am just wondering out loud whether a market-based or bid-asked process might work better for the E5 clubs and and for the folks who value a membership higher than others on the list. Maybe instead of large assessments for renovations, the existing members would benefit from having willing potential Newbies fund the improvements. Of course, there could be unintended consequences, maybe legacies would be more difficult, perhaps cultures might clash. Is it good or bad for a club to be populated by a bunch of IIs and IIIs? I can see how this might be bucking current trends, but social cohesiveness is extremely important- probably not any Al Czerviks at the aforementioned.