Also because a price that would significantly incentivise a senior academic is a price that is way too high for most journals to pay. If you have prestige, a

Also because a price that would significantly incentivise a senior academic is a price that is way too high for most journals to pay. If you have prestige, a decent if not exorbitant salary, bulletproof job security, a project you're passionate about and want to spend time on, and way too many obligations to actually spend time on your project, how much would you take in exchange for adding yet another obligation to the pile, taking time away from what you really want to spend your time doing?