Webinars: What's the point

I receive a lot of invitations to webinars, and many of them are free. I never accept the invitations anymore, even for the many that I find to offer an interesting topic. With webinars it is always for a specific time and a specific date that I have to 1. Remember, and 2. Not be doing something else.

What's the point of that?

The technology of webinars offers a fine opportunity for intense interaction that does not require travel or taking a shower, but just to listen to a presentation? I'm interested in webinars for the purpose of learning something new, and not to offer what I already know. As for the possibility of asking questions live, if that is even made available, it is fairly useless to me.

All my best question arise at least three hours after the presentation is over, and everyone has gone home.

Record your presentation and put it on YouTube so I can watch it at 3 AM, which is sometimes best for me. Don't ask me to be sitting in front of my computer for an hour at a time certain and with a date fixed by you. It goes against my basic principles.

Give me a pause button at least, so that I can get up and walk around when it all gets too boring for me.