Which stethoscope to buy

I started out with a Sprague and absolutely hated it, it broke after only 4 months. I've heard other classmates with Littman's say a lot of good things and recommend that I get one. Most of my classmates either have the Littman Lightweight II S.E. or the Littman Classic II S.E.. Being a nursing student I don't really have a lot of money to spend, so is there really much of a difference between the two besides price?