Sometimes there are prizes for completing achievements. Most of the time however the only reward is the satisfaction of completing something. :)

Depends on the achievement you're going after.

For example. Buy 25 items from the Token Shop, get a 1,000 point wizard token. Vend 10,000 items from any and all vending machines together, get a Miniature Vending Machine.

And so on and so forth. But all achievements are well... achievements. :D

i wish there were more prizes for the achievements like everytime you complete all the teirs for one you should get a cool item depending on how tough/how much it costs on average... that would really get me moving on them..

that would be a good idea :), but at the same time it would increase the prices too i think :( for the items needed (not to mention some are expensive enough)

Answer. =D

No, not for most.

There are a few, but only a few, like those mentioned by Amei.

Oh wow, good stuff. I didnt know any of that. Like I knew about the wizard plushie and stuff, but not about the vending machines. Thanks for that.

well sometimes you get a prize or achievements very easy, like the wizard one and the card game ( you already get an achievement if you win one game !!) or like for feeding minions

sometimes for vending and token shop its a bit harder to get ( i like those more :)