Because many of those videos won't be replayed over and over again. It's like recording fireworks. Almost pointless. You may as well just enjoy the concert (edit: without videotaping it.)
The tape recording, though, you bet it was enjoyed countless of times!
They do feel like that now. But back in the day, I thought it was the apogee of technology, so handling them (buying them, playing, sharing) was really cool.
Yeah, and you can tell just by the look on his face that this is serious business. He's just got to hope nothing going wrong while it's recording. I'd be so nervous about something breaking in the machine!