I guess you don't know how crony capitalism works?
SPC ring a bell?
See in the 4th paragraph where it makes $10-$30 million profit per year.
It they want $200 million for a roof, that's a 5-15% margin to cover the after-tax cost of capital.. which at today's rates would equal around 3.5%
The roof would also be likely to generate more income.
What this is called is socialising the losses, and privatising the gains. ANZ wants the mug punter to pay to boost their profits.
Also, being a non related party, the stadium would have to maintain it's multi-purpose configuration, which comes at a detriment to RL, and the other rectangular game codes.
if RL owned it, it would not be subject to not having its own interests first.
But that said, I'm not isolating it to Stade de Oz, Maybe parra with a massive upgrade, maybe a new greenfields site