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But i agree with you that anyway it is really big win for all these men. The same time much more men just lost these several thousands usd. These wins often used by casino to attract new gamblers and big part of them think that he can be this winner. And lose all their money.
You are right, not even the calculation is comparable to the biggest win even if someone has gambled for 5 years, the simple calculation above has even proven that he only spent +$54k for 5 years, so the above win is very rare even in the future the list of records above remains and impossible to be surpassed.