I saw that article and its complete BS. Thats not using monetary inflation as its basis, I assume its using average player cost or total PL spend or some other stupid metric to get that figure. The PL is vastly more wealthy than it ever was in the past and where United had lots of money to spend in the past, every team has huge amounts to spend now.
When United signed Ferdinand for £30m it was a lot of money but no one really said "**** me that ridiculous". The transfer fees now routinely get that response. Can you imagine any player apart from Messi going for £130m currently? Thats €150m.