Bigger conferences tend to put two particular keynote talks in. Something for people to discuss among themselves over the course of the conference, and then something to take away afterwards.

I watch a lot of conference videos, but I don't attend many conferences, I don't get value out of the so-called "Hallway track" and I dislike commercial air travel which limits where I could go anyway. I like where I live, that's why I bought it, so remaining here is great.