I wouldn't pay it, but then I don't drink either. For something so rare, the taste is probably worth it for someone that enjoys beer. This might be a once in a lifetime opportunity for most people, as it sounds like these particular monks are only going to release their brew to the public just this once.
Mmmm, is it just me or does it seem a bit weird that Monks are making beer!
It may seem strange by some modern thoughts of what is considered to be allowed or endorsed by a major religion, but monasteries actually have a very long history of making both wine and beer. It dates back hundreds of years, to medieval Europe or earlier. In a way, this is an example of how some core values of a religion can change over time.