How long before Grady Sizemore, Travis Hafner and Victor Martinez go to the Big Market Teams?

I have been an Indians fan all my life and it ticks me off that we can never keep the talent we produce. ex. Manny Ramirez, Jim Thome CC Sabathia... just to name a recent few. So how long is it before they leave Cleveland for the big money? Will an Indian ever have enough heart to stay with a team for lesser money. I thought Jim Thome was but he went onto have a few horrible years in Philly.