I understand where you are coming from and of course you are correct, as we know players have all of the power in transfers these days, the club has little or no power.
But far too many footballers unfortunately don't usually think that way, for far too many it's all about money, our own Mr Killkenny is testament to that, he never joined us because we are a bigger club than Leeds or that we were going to offer him a higher standard of football, he signed for us because we offered him an amount of money that Leeds simply didn't believe his skills set were commensurate with and the rest is history.
However lets hope JET is different, it would certainly add to his 'legend' if he signed a longer contract (if offered) or just said no I want to stay, but as many have said at the right price it could be win/win.