The NBA has always been thrived when a)there was an active dynasty/ies; and b)always thrived with the Lakers and Celtics in the news...
There will be another dynasty coming soon, there always is. Maybe it's Denver, maybe it's someone else. But there'll be another one soon. Dynasties ramp up engagement for folk rooting against them, and folk rooting for them drawing more bandwagon fans and haters alike...
So that part will take care of itself. San Antonio was an offbrand market that turned into a dynasty. The market don't really matter if there's a dynasty that increases engagement. Denver isn't even a small market nor an offbrand location, it's the biggest city in the country between East Texas and Phoenix, that's a wide swath of land, coverage, people. I've seen Broncos fans in Idaho and both northern and southern Utah. No one thinks Denver is some offbrand market the way these dudes talking in the video
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The five smallest NBA cities are, in order, New Orleans, Salt Lake, Memphis, Oklahoma City, and Milwaukee. The NBA will be fine if a dynasty emerged from one of them. Dynasties have always carried this league, and another dynasty is coming soon enough...
The other part that many brothers hit on, is the NBA shyts on its teams as far as marketing. It's always been too Laker and Celtic reliant. The Knicks and Sixers get decent coverage even when bad, I guess so do the Texas squads over the last half-decade. Miami is actually under-marketed, given they've been the premier East team for a quarter century AND are in major market. The League has to decentralize its coverage of being so dependent on Boston and the Lakers...