CME

I just got an email today about CME - Cambridge MIT Exchange. Someone probably decided not to go and now they're offering me the chance to go. I don't know what to do! Do I want to go to England, experience a different culture and education system, make new friends? Or do I want to stay at MIT, hang out with Yalu, get to know the people in my department better, get some of my HASS-Ds out of the way? Help!