Like most night owls, I spent early Monday morning watching YouTube clips of a holographic Tupac Shakur playing Coachella with his friends Dr. Dre and Snoop Dogg nearly 16 years after his death. It was at once creepy and crass, but altogether interesting no matter how you sliced it, and not just because they rendered the digital 'Pac taller and more muscular than he ever was.
Of course, if this technology takes off and the concert industry invests in it, the possibilities will be endless, and endlessly expensive for music fans willing to shell out extra dough to see a deceased artist live in concert. It's like séances have turned pro. Hell, they don't even to be deceased. The Rolling Stones could be supported on tour by their 1964 selves, or even an eerie flickering Robert Johnson.
This is different than animated bands like the Gorillaz or Dethklok touring in the past, with live musicians performing behind them. Would you even conceivably need live music for these shows? Would people care?