Eviro... No I don't think it's cheeky at all. If people are lazy, in a hurry, or rich, they will get it the quickest, easiest way possible. I don't think it's cheeky to put it on AH higher than you bought it. I think it's smart. What do you expect, people to put it at the same price or at a loss? :P
With Divine beging high for WHM, it's a great spell. Perfect for sleeping dark based mobs for example: Dark Eles. ^^
Also can sleep the hecteyes in Dynamis Sandy, much like Lullaby.
I have no idea why you would by this off the AH for 5 to 8k more gil then just make a quick trip to Bastok and buy it cheaper. Even if you are a gazillionare who dosen't like saving gil???