for some types the amount of games is entirely inessential.
I actually do not pay for restrictions but for lacking of them.
and even your impression based on the view of chess is not complete.
in correspondance chess you have only 3 days per move,
but the reflection time cAn be accumulated, that is necessary
to keep up the quality-difference to otb chess ... ~*~

PS indeed I prefer the 3days tourneys too and the best
gameplay in chess I acchieved when it didn't extend 30 games.