I will soon be replacing my PowerMac!! G5!! with likely a new iMac. I'm researching fusion drives. I've found some good articles on the technology behind them and their performance, but I've found none (nor forum comments) on my main concern: With all the writing/data moving that the Fusion Drive "magic" does, what kind of impact does this have on the longevity/lifetime, of the drive? Given the lack of comments/reviews I've seen about this...is this even a concern? Is it even a logic question to have? Anyone have any knowledge or links about this?