Here's an interesting one from earlier this year:
http://www.cyclingnews.com/news/liqu...fer-for-nibali
Astana was willing to pay Liquigas 3 million Euro to get Nibali, then pay Nibali 1.5 million a year for 2 years. So that's what a Vuelta win, 2 Giro podiums, and a bright future will get you. That's chump change compared to the other major sports.