Why don't we just say that the new arena is a public art initiative.
Architecture of the building,
Public gathering area akin to "Jurassic Park" in Toronto, just spray paint some electrical boxes...
https://www.calgary.ca/CSPS/Recreati...-Art/Home.aspx (Pictures 3-5 when scrolling down)
As well as housing concerts/Cirque de soile. ie the performing arts.
The City has no problem spending money on that.