This is called "conference marketing". Invite the boss of the enterprise to the hotel, and then someone will give a lecture to brainwash the boss who is doing it. Let you have the impulse to buy! In fact, his products are not very good, which depends on his own judgment and willpower. Often bosses are afraid of losing face. As long as someone buys it, they will follow suit! In fact, the first few people who buy are often entrusted, not real buyers. I have attended this kind of meeting, but I am rational and not fooled, hehe. Because I have a friend who is a lecturer doing this, that's really good!

I hope my answer can help you! Be more alert when you attend, there are all kinds of liars these days.