Parker is an affluent area, but the school district isn't that wealthy. I read that the district spends less per student that any district in the state, which is weird because the county is one of the wealthiest in the nation.
There isn't open enrollment anymore because it got out of hand. Ponderosa is all home-grown at this point though. Max Smith from last year came to Ponderosa for his senior year when his family moved to Parker from Alamosa, but he's the only transfer in the past decade or so.