I figure I spent probably around 10,000 so far. I applied last year, took an MCAT prep course that turned out to be a complete waste of time and money, applied to a bunch of schools, got rejected from all of them, and threw some more money down the drain this time around and added DO schools, so that's an additional cost. Thankfully, I have a few interviews this time around, so I do not mind at all spending that money.
I only need to fly so far to one interview, which should hopefulyl be right after I get a decision from my first choice school. If I get in, I'll cancel the interview, but fly to the destination anyway and just party and have fun and celebrate. I'm staying there a few days anyway because I don't need to pay for a hotel, I have family nearby so I'll stay with them. But then, if I get in to this school, I won't spend anymore money on interviews or anything, until I need to write a tuition check. Although I probably will go to interviews if I have a friend at the school and it's close by. Gives me a good excuse to drive 2 hours even though I would just be able to see them for dinner or something.