csdad, you're right about being able to save money on an apartment even if you "eat" the cost of summer rent.
For my S, he had more opportunities for resume-building internships away from Ithaca this past summer, so I'd hate to have him feel tied down to an apartment there. And after cooking for himself all summer, I think he does appreciate having a professional staff to shop and cook for him, even considering the limitations of food cooked in bulk

I don't think he's in any hurry to move out, but I'm sure it will depend on what his friends want to do as well.