I booked a room through the Pax site. Didn't give it much thought really since I know we'll be at Pax the vast majority of the time. Staying at the Back Bay, only half a mile from the site. There's a cheaper place a little over a mile away (and I'm sure others).
https://onpeak.compassreservations....lts&CFID=257996&CFTOKEN=439049&PID=P380756349
https://onpeak.compassreservations....lts&CFID=257996&CFTOKEN=439049&PID=P380756349