I Don't Understand

There are many things in this world that I simply do not understand. One class of such things is "who agreed to pay for that!?" For instance, I do not understand:

• How anyone agreed to fund Wrath of Khan after having seen Star Trek: The Motion Picture
• How anyone thinks that $19.95 + S/H is a good deal for a Hot Dog Toaster
• How anyone donates money to build an enormous building full of items such as toilet fountains and other examples of modern "art"

I found the latest example of this class of causes for my confusion in this article which describes the results of a study soon to be published in the Proceedings of the National Academy of Sciences that tested Viagra as a cure for eastbound-flight-induced jet lag using hamsters.