pretty easy idea here, GR can pick and choose who they want to support / advertise with, and I get to choose where I spend my money. Pretty simple.
Honestly though, I would guess that its safe to assume that residents make up 95% of the business GR does? I know what I would do If I were them.
Edit: If this issue really bothers you let them know. I'm sure if they got a couple hundred emails they might change their mind..