Sim, é verdade ; drives flash têm um número limitado de ciclos de gravação.
Deste artigo ReadyBoost Q & A :
Q: Won't this wear out the drive?
A: Nope. We're aware of the lifecycle issues with flash drives and are smart about how and when we do our writes to the device. Our research shows that we will get at least 10+ years out of flash devices that we support.