The Suns -- holders of the fourth-best winning percentage in NBA history -- have logged 19 seasons of at least 50 wins or more. That would still be true if you lopped off the first 10 years of the team's history.
Expansion and unfriendly division allignment played a big factor in the team's slow start to NBA relevance. When the Suns made their first-ever playoff appearance in 1970, they did so with just 39 wins under their belt. The following offseason, further league expansion resulted in the existing two divisions (East and West) be turned into four: Atlantic, Central, Mdiwest and Pacific.