I withdrew from IM Lake Placid very early this year when I decided to do IM Japan instead. I believe the refund was US$250, not $150. I thought that was almost fair.
I do wish they would allow transfers or at least give spots to people on a waiting list. Hey, they could charge those people the full fare and make even more money.
All this talk of IMC makes me want to head back there again ASAP. Think I'll have a friend sign me up. Well, maybe not.
--David in Taipei