Bemmu said a random weekend, so I would expect it to cost about the average of what they spend when no big events were happening . I didn't even add blow out weekends for vacations or major events.
But bemmu also calculated that you need $10 million, as if he were calculating doing this every weekend. I mean, to do it once, you only need $150,000.
Here's an alternate explanation for his calculation. People usually spend around 2-4% of their annual income on vacations. Depends on a lot of factors of course, but that's a reasonable amount. A person earning $10M could afford to blow 2% on one weekend ($200k), 2% on fancy vacations rest of the year and still spend consider themselves fairly responsible.
How much would an ordinary person earning $60,000 be prepared to spend on a big weekend blowout with live music, drinking, partying, clothes etc. Now scale that up to a person earning $10,000,000.
It doesn't scale linearly, more like exponentially. Wealthy people can devote a much, much larger percent of their income towards discretionary spending.