Don't be a sucker like me

So one of my many weaknesses is that I can be any easy sell when it is a spur of the moment decision. Most recently, a guy came into our office and said he had some leftover paintings and offered them to us for a "rock bottom" price. While I have no use for them, I couldn't help but fork over the money. Unfortunately, this isn't the first time. While I have recognized this personal downfall, I have not quite identified what causes it. I think it may have to do with great salesmanship - the ability for the salesperson to develop a relationship very quickly. Anyway, knowing this about myself has caused me to at least attempt to be overly cautious for other purchases, particularly those for business.

On that note, how many marketers out there have fallen for the relationship sell and continue to pay ad dollars to channels that have not demonstrated a positive ROI? Whether it be print, tradeshow, radio, TV, you name it, have you stopped to wonder if the reason why you continue to market in certain venues is simply because of your relationship with the salesperson? Is that good business?

I know I'm not alone in Suckerville...