applied to 60, and it cost me about $950 bucks.
To put things in perspective: airfare, gas, hotels, turnpike tolls, snacks for long car rides, etc. cost less than the darn eras application.
Interviewed at 12 programs.
Drove to as many places as I could. Use discount web sites (i.e. orbitz.com, travelocity, etc) and/or Southwest airlines to find the cheapest airfare. And I knew someone in every single city that I went to. Also inquire whether you can get an interview during your A.I. Mayo does this and I thought it was awesome of them to do so.