I don`t think that we should feel too badly for Ben in regard to the 7900, because from what I understand, he had used it daily for 6 months to earn his living in the off season and he had planned to eBay it soon in favor of a new saw.
Now he will simply have to change his listing from "Excellent Condition, Like New!" to read something like this; "Shows scratches and wear consistant with normal use.". He might even try listing it as a Stihl 311Y to get more viewers.
Russ