I will word it differently then:
It would be a huge waste of money to build a complex such as this for it to only be used twice a year. Therefore I would expect that it will get other use. There are other things in life besides tennis and pop concerts!
You say it will be a waste of money if it isn't used more frequently. I say it is a waste of money because it won't be used more frequently. All sports stadiums are a waste of money if viewed in purely financial terms. They are constructed to subdue the tax payer and they are quite effective at that task.
There will apparently be a myriad of events held at Pat Rafter Arena that will require the contruction of a pedestrian bridge. Can anyone elighten me as to which ones I have missed? I am genuinely interested!
We seem to have the Brisbane International once a year and maybe the occasional Davis Cup tie? Any other major tennis events? What about non-tennis events? There is nothing that could not be more appropriately accomodated at the Convention Centre or the Entertainment Centre. Both venues with configurations of similar capacity to PRA. Both are proper indoor entertainment venues with air conditioning and protection from the weather for all patrons.
I do not deny that the new Tennis Centre is a fantastic venue. Pat Rafter Arena is without a doubt the greatest tennis stadium in Australia (if not the whole world). My only point is that a pedestrian bridge is not a wise use of funds in the current economic climate especially when it will see so little use. It is a fully-functional, year-round tennis centre. Why disrupt that with some ill-fitting event that should be held elsewhere?