If he turns down more money, a move to a bigger club in terms on fans/resources etc then I think that is a very clear indication of how much he wants to be the motherwell manager/how much he enjoys it. 9/10 times if you offer more money to someone they'll go, if he stays it speaks volumes for the guy!
Thought as soon as they came in he was away.. never dreamt that he might knock them back, if it happens it would probably be one of the most positive things to happen in recent years, we might actually see a fair bit of the team stick around and we might even build on this seasons success.