Razrs are everywhere we are these days. I would speculate that they have outnumbered not only dirt bikes but regular ATVs as well. I know the past couple of Cruise Moabs there have been tons of them out there, and same with every local trail ride as well. The only place I haven't seen them is Spring Creek. I know Christo and Woody typically brings their to Moab, and I remember one year Woody did Pritchett in his!
Like we do for all the other trail users, we need to lead by example of courtesy and sharing as much as practical.