yes it is possible that the buyer has already seen or will look at other ads. the point is that they do that on their own. it is not the job of the people you are paying to advertise with to drive business to your competitor. if I pay to have a mass mailing or email sent out to all my leads and they then use that list to send out leads for my competitors I would be pissed. they have done just that. An ad was paid to be put on boattrader and a lead contacted the advertiser and boattrader has taken it upon themselves to use that lead to then send competitors to that lead. besides being unethical it is just sleazy business.