It may seem cheap and petty to some for someone to ask to save $240 because they found a difference of $.20 in nightly rates. But... as folks have pointed out, from the corporate side this is like hiring a bunch of mystery shoppers that only get paid when they find a standards compliance problem. And then corporate hits up the individual hotel owner/manager to pay for the non-compliance. The individual hotel owner/manager may be unhappy that they got caught for being out of compliance, but they can take it as a lesson in how to improve their systems. The customer is happy because they got a deal. Corporate is happy that a non-compliance issue was reported.

I think those who think it is cheap/petty feel that the reward is large for the size of the infraction. It may only be $.20, but sometimes it is good to catch those little issues before they turn into big ones. The question a good manager would ask is why the prices were posted with a $.20 difference. Typo, bad training, limitation of pricing engine, automated computer price posting problem, bad attitude, signals to aliens from outer space, etc. Only if you know you have a problem and what it is can you hope to fix it.