do all dealers lie

Well we would have to differ on popular opinions... Allow me to explain. We went to a show and were approached by a salesperson and she assured us that we could pull the trailer we were looking at etc. After and was very positive in all the questions we asked, when we told her that after checking some things we would be back the next day and sign the deal. Well after doing the research we could Not pull that particular trailer. We informed her the next day and was told that my research was wrong, that it would be ok. We walked away. 2 months later we checked out another camper at the same dealer, with just the opposite effects, Told the salesman what we were driving and he showed us appropriate units. We signed the papers that day. Two years ago we didn't have any thing to do one afternoon so we went looking at RV's. The salesman we spoke to asked what we were looking for, towed with etc. showed us one unit, the DW looked around looked at me said Nope not the one, looked at a second one again looked around and at me said Yep this is the one... we signed papers that day as well. Both times that we bought, the sales staff were not pressuring us but concerned that we found what could safely pull, and what we both wanted, Oh by the way both were campers as well. Good Luck and Happy Camping !!