It's fair, i have nothing against it.
I bought 28 of them myself ( i know J4'th is laughing his ass off ).
Did not need more at this level(4). Could use some now, but, like with Starcraft 2, won't invest until they fix a "broken" game that i like.
If you want to be "the best", buy, but keep in mind, troll results are more frequent when you buy.