Crash'n'Burn
I'm guessing Zuck can use spare cycles to count his bank balance, which is a long job in itself. My other thought is that as FB's currency failed in the real world, it's almost certain to be the main currency in their Metaverse - you can imagine Zuck's avatar being a multi-billionaire in that world too.
Please though, for the love of god, let it crash'n'burn. The thought of Zuck sitting on his virtual throne in 'his world' just scares the crap out of most people.