[Chris Williams]

IMHO, contingency dollars are like mail-in rebates for consumer products. The company is very much hoping they'll never have to pay, but they'll get the benefit (your purchase and/or advertising with the sticker) anyway. Most don't have qualms about making you jump through hoops and delaying payment, making it so painful that you'll just bag it. That you'll just run their stickers for years and never win, or never jump through the hoops. Free advertising with their core constituency, and even props in the digger and elsewhere for offering it.