Agreed with both of you. I don't talk someone's ear off on the phone and then buy elsewhere. If they help me, they get the business-- period. If their prices are really high I might mention a competitor's price to see if they have some wiggle room on the price. Even if they stick by their guns I still buy from them as they helped me. Their time isn't free. Unfortunately it seems in the world today where it is very easy to price search on the internet people take the info from you and them go on google and sort by lowest price and buy from that source.
You guys could start doing what another friend in the industry does... when you know someone is phone-@#$*ing you with no intention to buy from you feed them bad info
He says it's a riot when they call back cussing and complaining they bought what he recommended elsewhere and guess what, it doesn't work! He then gives them a real earful. Mean trick for sure, but probably hurts his reputation more than he would like to admit as you know those guys are pissed and badmouth him every chance they get even though they didn't purchase from him!