I stumbled across this savvy discussion by

He also discusses what he calls a video on demand. That is just a MINI-LESSON or Case study or testimonial video that helps screen the user to make sure they are a good fit before you waste your time. Therefore, you only end up on taking meetings with people who already know about your high ticket course, consulting package, etc... and they have specific questions such as price, how is it delivered, how long will it take, etc.

Matt wrote a nice article here, if you want to read more: https://www.autogrow.co/sales-strategy/