I don't think the saw is eating the blades, but rather the inexperience and impatience of the students.
Our local college had two DW788 saws in their woodshop and the blade holes were destroyed by people tilting the table and aggressively pushing the blades. And, just general pushing against the blades.
If the students are having issues, a more expensive saw won't solve the problem. A balance of the correct blade (speed and feed) and a competent operator is what is needed.