Well then I guess its okay: "Mom, all my friends are doing it..."
I didn't read it as approval. I read it as acceptance---not as in "I accept that this is good", but as in "I accept that this is inevitable."
Sales is, at its core, always at least a little bit adversarial. There are lots of things you can spend your money on. And, while the thing I have is great, you may have other great things in mind too. So, unless a buyer is post-economic---they have more money than they could ever possibly spend on things they want---the question is always: "Is this worth my money, or should I spend it elsewhere instead."
The seller's job is to convince you that yes, yes it is. They are going to highlight the advantages. They are not going to highlight disadvantages. They are not going to spend a lot of time talking about limitations. That leads to three different sorts of "untruths".
* The lie of omission. There's some limitation or downside, but I fail to mention it. Neglecting to mention that special assessments are possible, for example.
* The "leading lie." I tell you something that is correct if construed one way, but is commonly construed in another way more favorable to the seller. "Sure you can book the 4th if you own Platinum time" is a fine example of that---it's technically true, you *can*, but it's not necessarily likely to happen.
* The outright incorrect falsehood. The examples here are pretty egregious. The most famous is probably the Mexico tactic of getting you to "sign away your rescind period" when in fact you can do no such thing.
The kicker is that *most* of the stuff people point to as "lies" are omissions or leading lies. Those are unlikey to kill a deal even if they were caught on tape, because---technically---the sales person never actually said anything that wasn't true. It's only the flat-out falsehoods that will kill a deal, and while they are a problem, they are probably not the biggest problem.