Jim - if I see a long line for the front desk, I usually hit up the concierge (as long as he/she isn't busy). I just did this at The Atlantis Bahamas and acquired a few keys

I might be doing the 4.5 hour drive to Vegas next month. I'll try to gather some extra keys specifically for the next RR. Do you know where they have new keys (I'd rather not waste my time trying to get older, common keys)?