How many times have you passed up a sale just to have the "buyer" not bother to show up? It only took once for me. FCFS.I'm with the "buyer" on this one. If you agreed to meet him witha place/time, then you're wrong for then selling them to someone else. I'd never do that to someone. If you're one of those guys that wants to turn it into a race, let me know ahead of time so I can scroll past your ad.
Granted there could have been better communication, but unless I've dropped a deposit on something, or the seller understands that I'm literally on my way, I expect everything to be subject to prior sale.