When I was actively soliciting chips, I always offered to go to their home, setting a time. I hope your guy shows and that you get the chip for $5. But if it is scratched, tell him I'll pay $6 for it sight unseen.

I see you set an office appointment and that's ok providing you don't have your chips there. There is a common ploy among the unscrupulous to visit the home of one who advertises and then wipe them out later. Burglars, you know.