Has there ever been a sub-level of EXP, akin to the UA "UGS" level? I know the concept has been discussed ad nauseum, but I never saw a thread about if it ever existed.

The more I fly, the more I wonder why AA doesn't do this. I'll never qualify, for it, but if I were a 200k or 300k flyer - or EQP earner; I know a guy who flies all week long in paid F - I think an extra layer of status/service/attention would be appropriate...