People who live there. The only vegas steakhouses that were definitively better than the RC in Bethesda are T-Bones, Strip Steak N9NE and SW Steakhouse and Cut, and most don't beat it by that much a margin unless you care about wine lists. I did not try Prime Nero's and Carvenzo's but lets assume they are better as well. All of those except for T-Bones requires a trip to the strip, which is annoying for locals.
Strip Steak is the best I've had, but I didn't have their filet.
Most of the fancy Vegas steakhouses like Craftsteak and Delmonico that get good reviews put Rosemary and Tyme on their steaks which just kills it for me.
None of the above "better" steakhouses had a noticably better filet than the Bethesda RC.