I think there's a big difference between the solitary confinement situation, and the initial bet proposal. Sitting in my own comfortable bedroom with windows, even if the windows can only be used for light, would be aight. I can wrap my mind up in various ideological thought and plan out my future and various aspects of my life and how I feel bout the people in it and the decisions I've made.
Maybe moving to Vegas has brought out the degen in me, but I would snap do this at 10:1, my 15k vs whoevers 150k (assuming the music was at a tolerable volume). Plus I would make extra $ selling subscriptions to wimmin who would want to watch me sitting around all day while girl fapping
I would never under any circumstances take on those sensory deprivation props though. Knowing the passage of time would be a big part of what would keep me going.