Here's my cost saving suggestion for AC: Stop producing the Priority tags.
My experience is that putting the priority tags on luggage has no effect on when that piece shows up. Last summer, I waited at YYZ for 45 min for my priority tagged bag while other non-priority bags were merrily making their way around the belt.
In response to fakecd, I think that there should be no differentiation between high paying (business) and low paying (economy) priority stickers. I would suggest that the frequent flyer is the lifeblood of the airline, whether travelling in economy or business. Getting your bad a few minutes early can save considerable time as you make a dash for the rental or taxi lines before the other passengers.