Ahhhhh. My personal opinion (take that for what it's worth, which may not be much haha) is to go on your trip. There aren't many programs that interview in February. I just don't see much likelihood in it. Hopefully they'll be some movement on the waitlist this month so that you feel a little better about your numbers. Also, not to jinx anything but even with just 5 interviews, you've got a very good shot at matching at one of those five places. So enjoy you trip!