After reaching 1,000 achievement points (and receiving 250 bound credits), I feel like there is no reason to pursue achievements now because there is no tangible reward. 90% of the achievements award experience bonuses, and I have hours and hours of those stocked up already, and I will never use them. I think that the reward aspect of achievements could undergo revision.
Going through each one and thinking of an appropriate award would be incredibly time-consuming. What if, however, we could trade in experience bonus hours for other rewards. For example:
12 hour experience bonus = one stat soulstone
Handling the conversion would probably be messy this way, though, so it might be a better idea to let the achievement points be currency. So.. if I complete an achievement worth 10 points, that 10 points goes toward both my achievement points in honours as well as my currency. It'd be like trading in yeti pelts at icecloak mountain.
So.. 1 achievement point = 5 lessons
10 achievement point = 1 stat soulstone
100 achievement points = 50 credits.
And you can redeem them anytime you want, saving up for better rewards if you'd prefer.
Just a thought.