One of my prelim medicine programs is having a second look dinner this Saturday night. They tell everyone at the end of the original interview that they are gonna have this dinner so I really puts the applicants in a strange situation. It kind of makes us feel as though we have to go or they'll think we aren't interested. Luckily for me, my family lives near by so I'll kill two birds. And also, I really do like this program so it's not like I'm doing this for a "bottom half" program.
So to answer the original poster, go for the second look if you're interested...Feb. is definitely not too late.