OP, the floor took about 4 seasons to increase by 60% to where it is now. Most of the increase has happened in the last 2 seasons. That reflects the substantial spending of 3, maybe 4 teams. The other teams don't seem to have that sort of cash, so the floor will probably grow in line with spending by the richest 3-4 teams. This season suggests they have an appetite to keep spending, so maybe the floor will crack $2 million in 3 seasons, at this rate.
However, the earlier poster's question applies - how much has revenue grown? And, more to the point, how much of that growth has gone to clubs, as apposed to the NBL?
I think there probably has been some revenue growth but most likely it's gone to the NBL, not so much to clubs. Exceptions would be the Kings' jump in season memberships sold last year and presumably some greater sponsorship revenue for some clubs, as interest in NBL has grown.
However, other revenue, like anything from more eyeballs on screens and league level sponsorship would go to the NBL. Anyone know what the NBL/clubs revenue sharing arrangements are? Does Kestleman have to recoup his investment before any profits can be shared with clubs?
I also think any revenue growth is probably not much at this stage.
Last comment. If the highest paid player at the moment is getting $600,000 salary, adding $400,000 to that will add about $6 per ticket to the cost of going to a game, unless other source revenue to the player's club goes up to cover it. So, that player has to add a lot of drawing power, such as Bogut did for Sydney last year.