My opinion - I think your statement that GA and ECNL are interchangeable is very optimistic. For example, 2011's have 2 GA's in the top 10. The 10's have 1, the 09's have 1, the 08's have 1, and the 07's have -0- and the '05/'06's have 1. That is using Soccer Rankings which is in my experience the only ranking service worth its salt. Not saying to put down GA but in terms of numbers, it has a way to go.
I am very happy that the '11 Surf gets to play the two best GA teams in San Diego in the Club America tournament (City and SDSC). There just aren't many opportunities anymore due to top clubs not really motivated to enter tournaments let alone play them to win. This is due to ECNL league being the all important criteria for the national championships and therefore playing time is about winning. A policy in Surf (I don't totally agree with) is to go the opposite extreme and see tournaments as mostly giving non starters playing time which doesn't allow for good comparisons with teams played in the tournament. I just guess perhaps we have gone a little far in this "it's not about winning" approach. We need balance.
All in all, I am cheering for GA. Competition is what sport is all about and it rewards excellence and punishes complacency.