$55 for a case of pop? Welcome to McCormick Place

The Chicago convention center is one big union party.Check out some of these costs:

A medical firm that participated in the 2003 Radiological Society of North America convention got a bill from a general contracting firm for $16,500 for five days of carpet vacuuming. The rate was 90 cents a square foot, according to the bill.

Just in case you are wondering not everyone can get that job vacuuming.You've got to know someone.Chicago Sun-Times