I agree with most of what you say, however, with the crazy amounts of money being paid to top picks, I don't think Luck would lose major money coming to Buffalo. Peyton went to Indy, not exactly a media hotbed, and became the face of the NFL because he won (and cause he had a goofy charisma).
He is the guy the Bills would want I think, but there's several factors working against him coming out. 1) He comes from a wealthy family, no need for money 2) Loves school 3) Possibily going to Bills