Take a look at the ad to the left promising $12,000 off MSRP for a 2013 Ford F-150. That’s a heck of an offer for a truck that starts at around $24,000. But what you don’t see — and what you don’t find out until you try to buy the vehicle — is that the discount only applies to the $47,000 F-150 Lariat version, so instead of getting a 50% discount on a reasonably priced new truck, you learn that it’s around a 25% savings on a high-end vehicle. [More]