Reason #1. We're not surprised by them when we see them on stage anymore.
Remember how you felt when you first saw the 2Pac hologram? Your reaction went a little something like this: "HOLY %*&^, IT'S…IT'S…IT'S 2PAC!" But on Sunday night, your reaction was probably, "Oh, Michael Jackson? Meh. Cool…I guess." The novelty of seeing a hologram perform has worn off now that the process behind creating one has been explained to us on several different occasions.
Photo Credit: Billboard