I have spent my entire life buying equipment as well as old play toys. I spend at least a half an hour on the phone with people. If you let people talk long enough, it isn't that hard to separate the genuine people from the scammers. One dead give away is that most scammers are compulsive liars and they can't remember what they said 15 minutes ago. It is really difficult to explain to people what specifically to look for, but scammers usually trip themselves up in less than 10 minutes of conversation.
