Absolutely. There's a certain little group here who, last topic, was dead against it, but for the most part, I think we'd all be happy with a buyback feature from NPCs. Especially, as you said, the interface lag can cause some of the potential selling problems. There's no challenge dealing with that, it's just an unnecessary annoyance.

inb4 omg pay more attention it's fine i never had that issue i pay attention before i sell its your fault and totally manageable.