Originally Posted by
davetravels
I have always wanted to know this, and similar things, too! Unfortunately, I'm about 1000% certain that this subject is TOTALLY taboo, and this thread will disintegrate into thin air, and go into the vault up in FlyerTalk heaven, never to be seen again! . . . . and your FlyerTalk membership may even be in jeopardy! How dare you ask such a top secrect totally hush-hush question!

I doubt it is that hush-hush. A couple of years back, CO mentioned the cost of partner awards in a conference call to help explain some poor results. Buy some stock and ask during an earnings call.
If I had to guess, I'd think that the tickets are purchased from the partners at maybe a penny per mile.