Reasons why Mateer would stay:
1) If our collective can get him $200k and he truly believes that he is a future NFL player he may want to stay in a system he knows. Cam Ward is lucky that he fell into a position with a team that has a decent OL, decent defense and a crap schedule. A lot of transfer QB's struggle. One fumble knocked Ward out of the Heisman lead and a loss to Syracuse or in the ACC championship probably kills his chances. Cam is still the poster child for why Mateer should leave though. USA Today did a review of transfer QB's and found that 55% found success and 45% fell short of expectations.
2) He may love Pullman and WSU. Although loyalty is a rare quality these days....it does exist. We don't know how he feels
3) He may not get all that great of an offer in the end. Anyone looking at him objectively and who watched the New Mexico game film knows that he is not a polished QB. He has a lot of great moments, but all BS aside, if he played well in the third quarter, we would have won that game. The defense was the main problem, but that's a track meet we should have won. Another loss and his stock may start to fall.
Realistically, Mateer is gone and there's not much we can do about it. That said, it won't take an amazing QB for us to be 9-3 or 8-4 next year. We have a lot of available wins on the schedule, particularly if our defense quits sucking.