That $10 renewal was a nice treat for a couple years, wasn't it? That was a temporary decrease (it had been $25 for a while) and my renewal last year was I think $50? $99 is a jump, but I'm really looking forward to the medical-library access it buys us.
Did you get included in the comment period before this increase went into effect? I think Ann Brittain's office sent out a notice about it a few months in advance (gov't liaison).