Three Rivers Volkswagen

I did extensive research online for vehicles that could fit my family for the price range I wanted, one I found on this lot. Salesman was nice, test drove it immediately and had carfax available for the certified vehicle I was interested in buying. He was nice but when we sat down at the sales desk and I asked what price they were willing to sell the car for, he stated for what it was listed at and no lower, unwilling to listen to any offer from me and my husband. I told him we had another vehicle to see, did he want to take my contact information to let me know if there was any change at all, he actually refused my information, and let us both walk away with no change in offer or other sales pitch. I guess he didn't mind a sale walking away. Unbeknownst to him we wanted to purchase that day and ended up doing so at the next lot, what's funny??-- the car we settled on was 100$ more than list for the one on this lot. How does anyone selling used cars not entertain any counter offers or even ask what our end goal was?