Wirelessly posted (BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
Happy to report that I just booked a NYC-BGM mid-December trip for $1.50 on Megabus. With the BGM-ITH add-on, the NYC-ITH one-way will cost a whopping $14.00.
No luck on the ITH-NYC return, however, as all of the BGM-NYC trips are pricing at $41.00 (probably due to the end-of-semester exodus).