For those around a long time, it does sound like the same over and over.
But the reality is, in ANY conference there are always a % of newcomers that need this type of interaction.
The job of speakers is to keep mixing it up. Say the same thing different ways. Saylor does a pretty good job of this. His message is the same - but he has a way of interjecting new ways to present it.
For the independent thinkers already around Bitcoin the conferences probably seem silly - or even un-necessary.
But as adoption grows, conferences will evolve to meet the needs of the next wave. Until there are no more conferences!