Refrigerator door shelf broke

ok, this could not have been easier. The part just snaps into place, so no tools were needed. However! Partselect saved me an hour-long drive and a couple of bucks. I called the 800 number on the fridge ID tag, and was all set to drive 45 miles to the nearest Frigidaire dealer in Fayetteville for the part. Then I decided to check online. Partselect had the part and it cost about $2 less. There was no doubt it was the right part because they provide what appears to be the engineer's sketch of the fridge or the actual diagram from the owner's manual (which we do not have). Anyrate, it arrived 2 days later. Why aren't all repairs this easy?!