While the product on the ice was anywhere from fair to great, the business and marketing acumen of the WHA league and front offices was, at times, sorely lacking.
The league liked to make announcements that it couldn't back up. The opening ten cities included San Francisco and Miami. After the league found that those markets couldn't become viable quickly enough to make the stated schedule, they then made announcements of moving these founding franchises elsewhere.
The rush to announce brought the league's stability into question. It's marketing put the league in jeopardy.
The plan to be in major markets where the NHL wasn't already serving seemed like a good idea. The WHA never really executed the plan well, though. They opened franchises with the "If you build it, they will come" philosophy.
There was little investment in the kind of fundamental outreach to develop hockey as a sport in the community that many of the more successful minor leagues practice today.
Where WHA teams did make outreach, there was not the ability to wait out the years that it takes to seed the soul of a sport where it has had no prior existence, and has no other similar sport from which they could draw fans.
Smaller markets with no hockey history like Birmingham, Phoenix, and Houston could not sustain major league attendance numbers in the 1970s.
Cash is king in sports. The NHL came into some markets, like L. A., with deeper pockets and drove the upstarts out. Ownership did not have the pockets deep enough to sustain the losses. The league's pick of cities did not yield enough revenue to help prop up the league. The WHA kept opening in new cities, and running into the same problems.
Like the NBA, the NHL's television revenue was the ultimate difference between the major leagues. Hockey was given little airtime on the big three networks. Cable was in its infancy, and the burgeoning ESPN was still a decade away from hitting stride.
By 1979, the WHA tent was folding. The Winnipeg Jets, the Edmonton Oilers, and the New England Whalers were able to migrate to the NHL. The Houston Aeros, with a smaller market, became part of the International Hockey League (IHL.).
The dream of two major hockey leagues was dead. Or was it?