When you think of the number of non-sporting events that take place at the MCG and Marvel Stadium, it will give Hobart a facility for entertainment that they don't currently have. As for the cost - you could compare it to the horrendously expensive Metro Tunnel and Suburban Rail loop that generations of Victorians have been saddled with. But many on this forum have exclaimed "But it's infrastructure we need.", even if not available well into the future.