I respectfully disagree with most these posts. First, it's more than $200...it's more like $500 when you are looking at hotels, eating out, getting taxis, paying for airport parking, gas money to drive to the airport (if you're like the me and the closest airport is well over 100 miles away)...it all adds up. Second, trust your gut. If you are already are leaning towards Keck over G'town, chances are you're not going to be over enthusiastic about G'town and would get waitlisted at best. Third, Keck is a "better" school if that means anything to you. These schools are really far apart...if you're a CA or west coast resident, do you really want to go all the way to the east coast? of course, if you want a change or live on the east coast, that's different. Finally, I know for me interviewing got to the point where I didn't care about the cost, it just got so stressful and draining. I scheduled too many and got so sick I had to cancel my Columbia interview. Now I'm just so happy to sit at home and not go to any other schools after going to eight interviews in about twelve weeks. ultimately, it's up to you, and really, it isn't the end of the world either way. I don't think it's too big of a deal...trust your instincts. and congrats on Keck!😀