Slipping into a Comma…

A rudimentary internet search reveals that the average cost for a copyeditor (someone who reads over your papers, manuscripts, etc. for errors) is $25 an hour, with the assumption that you can cover 2-3 pages in one hour. If you are a college student, a hoping-to-be-published writer, etc., would you pay someone like me $25 an hour to copyedit your paper? If not, what would you pay?