Spokane to Kansas City??? Sounds like a real cash cow. . . . .
You sound like the real expert. You probably don't realize the amount of money and big business in each of these cities and the others XJET is opening at. Austin is the Texas capital and has lots of computing companies. ONT (obviously near LA is busy), SAN is another prominent venue....etc.
How do you think people get from GEG-MCI usually? Do you think its so rare that among all other connecting airlines not even 15-20 people per day do this trip? It IS reasonable in a 50 seat jet.... Time will tell.