Just a thought...
Seeing as how the hero's gear for coupons are still the same cost as they were way back when, and the values of gear have increased quite a bit, I believe the coupon cost for the Bubble, Spirit, Demon and Royal gear costs should be cut in half or more. Especially since the best gear values are in the 70's and 80's now, and that it is so hard for newer accounts to get coupons anyway.