Bike theft is a major issue on campuses here, not sure about the US, but I'd take that as a concern before I buy a brand new bike.

An older bike with some "personalization" is much less likely to be stolen than a brand new Townie.

This being said, I LOVE townies.

I also agree about carrying groceries, books, etc...

Have a conversation about the helmet thing. Here in BC most riders I know wear helmets when they go on the road. For some reason, they won't ride with their helmets when on campus. ??