Two years earlier, he dismissed it as "just a tool like a typewriter": https://www.youtube.com/watch?v=MmxOq9STmQM, so it's interesting how he evolved. He does already say that he liked immediate feedback from comments about the show the night before, so the point about the audience was already there.
This is consistent with Bowie's genius to be more an early adopter type than a visionary type. A hell of an early adopter.