i know what u mean
this happened to me during the interviews
after i was accepted at BU i withdrew my application from all of the other schools, but then I was undecided about withdrawing from northwestern cuz i was like "i dont wanna spend $500 on a trip that may lead to me not even liking the school and/or the city", but then i didnt wanna feel the "what if" for the rest of my medical years
happy to say that it reinforced my decision to go to BU and will never have to ask the "what if"
point is..... you've already probably spent $2k on the application process, so u might as well dish out a couple more to make sure u pick the school that best fits u
gluck in making the final decision tho, but i hope to see u at the open house