WICHE is a help for western states, but notice a lot of schools don't participate and the rate savings are anywhere from OK to not much at all. Most schools also limit the number of students who can receive the rates. Most public schools and states have deals with other states that drastically reduce the out-of-state burden without quotas. Arkansas for example, allows any student from a bordering state, and a couple of non-bordering states like Illinois to attend at basically 110% of in-state. You will also notice, for example, that in Oregon neither Oregon or OSU participate. In Arizona, ASU and the U of Arizona offer something around 150% of in-state, but in California, UCLA, USC, Cal-Berkley, are among the major schools that don't participate. In Washington, Wash State does, but U of Washington doesn't. So, it's a help, but limited. Most states do better.