I love that stuff.

For 10+ hour flights, it's the only thing that knocks me out hard enough, and it's free of a lot of the side effects of the hypnotics (no risk of amnesia nor of addiction, although the sleep-inducing side effect does wear off with regular use.) Trazodone is a cheap generic, too, unlike the name-brand hypnotics.

That said, I think the original joke was on the prevalence of online-sale-of-Viagra spams.