To date, the city has committed more than $5 million to its Olympic pursuits. They’re working against a March 31 deadline, when would-be host cities need to declare their intent. A bid alone is expected to cost up to $30-million, and the Games themselves would be $4.6-billion, according to the bid committee’s original estimate. Estimates of this sort are almost always lower than the actual price tag, and the committee’s estimate didn’t include the cost of a new hockey arena.