[Giants]

There is something to that, but there is also something to a bit of competitive balance in making the sport more popular.

BC

8 different teams have won the World Series in the last nine years.
6 different teams have won the Super Bowl in the last nine years. 

Competitive balance is not determined by how much teams are permitted to spend.  Strong leadership from the front office to the on-field manager/coach that can identify talent and maximize their skills will always win regardless of the rules pertaining to spending.

[Giants]

There is something to that, but there is also something to a bit of competitive balance in making the sport more popular.

BC

8 different teams have won the World Series in the last nine years.
6 different teams have won the Super Bowl in the last nine years. 

Competitive balance is not determined by how much teams are permitted to spend.  Strong leadership from the front office to the on-field manager/coach that can identify talent and maximize their skills will always win regardless of the rules pertaining to spending.