YOu can get a hero 2 for about 250 now so there isnt much of a price difference .
I would go ahead and get the 2 It does a lot better in lowlight conditions and also the 2 button system on the 2 is easier to use.
As far as which one to get I would consider what other things you may use it for and decide based on that .
None of them really cater to a kayak more then the others most of us build custom
mounts on mono pods . If you if don't understand what i'm trying to say just let me know.
I would diffently go to a 2. With the new back pack and accessories being released. With the 2 and having the wifi pack, you can watch it live, they are coming out with apps for the hero2 this fall. Battery life has been upgraded also
The wifi bacpac pack is the sh!t. :notworthy:
So nice monitoring and just hitting a button on a wristband, instead of reaching behind you to find the buttons on the camera.