Atreyu - tyre kickers come with the territory. It took me 10 months to sell my Lexus and I wasnt appealing to a younger generation dominated market. I carefully priced mine after the first month, 2nd from bottom of all ad's I could find. I still had people offering me 20K for a car that was up for 27/28K. Other Lexus' of a similar age and much higher km's were 30K plus.
It pisses us all off but as a buyer, people try their luck. Definately no need to get fired up though, you could quite legitimately have questioned the statement though as you wouldnt want it hampering any future sale.