Holy crap! That's not a $150 bike, either! Sorry to hear about your wife's loss. Ouch.
Keep an eye on Craigslist, and look for individual parts, not just the whole bike.
People told me I was paranoid when I refused to let my bike out of my sight at or after the Chilly Hilly. They said no one would be stupid enough to steal a bike at an event like this, or from the ferry. For whatever it's worth, your experience will keep my eyes on my bike.