Okay, maybe 50 was hyperbole, but clearly the yanks have outspent the rest of the league by quite a lot over the last 90-100 years. Sure, another team spent big here and there, but the Yanks have pretty consistently been big spenders- not just with payroll budgets, but also with International FA signings, before the limits, pre-draft era young players and just plain outright giving cash to teams for very good players.
Since the Stienbreener era, it's not really even close. There were so many seasons where the Yanks let by $50-75M over the next team, that other closer seasons can't make up for.
Yes, we have bought players that helped us win a ring, but the Yankees outspent us by over $180M during the 3 years we won championships. That number is mind-boggling. This year, we lead the second place team by about $35M. That includes over $35M paid to HRam and Pablito. I guess one could claim we bought a ring, because we signed JD and paid a hefty bonus to get Moncada, who brought us Sale, but even still, this is not like 2004, 2007 and 2013's differentials.