What's the point of selling him if he doesn't want to go? Not like we'll spend the money on someone better than him, or that we'll take to anyone with the same speed that we took to Harry.
Priceless is an over-used word, but I think it holds here: if the club's truly convinced that he has the skills to lead the line for us consistently for the next half-decade or so, then there's really no price worth selling him for, as he possesses certain factors (home-grown, one of our own, English and therefore possessed of an intrinsic 'media' value that will hold whatever his form, down-to-earth lad that everyone at the club generally likes) that make him superior to most alternatives.