How about the 1926 to 1964 Yankees? In 38 seasons, they played in 28 World Series and won 21 of them. They had several streaks of winning 5 WS in a 6 or 7 year span.
The Yankees did this in a much more mature sport than 1950's era NBA. It is far easier for one team to dominate when a sport is young and immature. As a sport matures, parity tends to set in. College football is a prime example - when it was a young sport, Harvard dominated. Now that it is mature, the sport has parity with any number of teams being able to compete for the national title.
Women's college basketball is a sport that is still young so you see teams like UT and UConn dominating. Once the sport matures it will resemble the parity of mens college basketball.
Great Yankee teams, but five ain't eight and eleven in thirteen years is unreal.
I'm not one to say that those old timers (I'm an old timer too. Can ya tell?) could play the game today, either. The only way 99 44/100% could get into a game today is to buy a ticket.
Women's basketball? What the hell is that?
;O)