Unhappy buyer .What to do ???

Lots of professionals out there lookin at stuff and really they wanna sell parts too.....that gearset could go for two more runs or two hundred...its metal stuff it's gonna go till it's broke the price was more than fair description was good don't base what you do on our opinion...do what your gut tells you...thats what makes you ....you we cant see the part or the problem with it...I have a feelin I have dealt with this person before and he's a straight shooter...the person that lloked at the part may not be so or may be a nit picker and that happens theres an *** for every seat, based on what was said I'd run that gearset but my car don't run in the sevens so I'd never break it..I've had gears that howled like wolves and never broke but I wasnt runnin that fast, ask him what he thinks would be fair???? see if it's worth it to make this go away??? JMO
Thanks guys.My gutt told me the same thing ,but just wanted to make sure i was thinking right.I sent him a reply back and politely told him that i dont think i owe him any $$ adjustment.Please keep in mind the man was not rude or demanding to me in his pm ,so i treated him the same.He even told me that i accurately described it ,but the problem was not seen by a visual inspection (basically thats how he said it )...