It would be foolish to automatically assume a Colorado kid will consider CU and you're right that a good recruiter has to make the pitch... but there's a good pitch to be made. Building a tradition in your home state, leaving your own mark on a program, having family and friends be able to come to every home game etc.Yes, and some kids still gave no thought to CU. The whole point is that some players will always leave the state. This happens in Alabama.
People think just because they live in the state that a kid will give CU the time of day. That is the job of a good recruiter.
That's not going to resonate with every kid, but it's a pretty good ready made pitch and a good foothold for a good recruiter. We've also seen a few players leave only to transfer back to an in state school.