What is the most expensive Metaverse purchase?

Could you enlighten me on what constitutes the most expensive transaction ever recorded in the Metaverse? I'm intrigued to know which virtual asset or real estate surpassed all others in terms of monetary value, setting a new benchmark for the digital frontier. What was the nature of this purchase, and who were the key players involved? Additionally, what factors might have contributed to the extraordinary price tag attached to this Metaverse acquisition?