No way! @_@
The only thing that i can find annoying about them is the lack of flexibility in what you can do with them and in controlling them. They come very close to orks. But i look at it from the bright side. Often times i feel like i am about to loose and then whoops carbuncle magic autowins!
Prebuilt 15$ and ex packs 12$ totals 27$ which is sort of okey if you consider how hard it is to generally get a viable deck.
And for those that were lucky to get the 500 gran version of the prebuilt, it's only 17$. It's such a damn rarity to see an easy and non-overcosted super expensive way to get a meta deck.