You have a point there about the zeny, but you have to understand that not everyone is willing to buy OBBs, BBs, OPBs, WMs...etc.
OCAs are fast moving items, they sell so fast it isn't even funny... But there is no need to go as low as picking on the donation list itself. Pandora is not charging us to play, and she often pays for things to improve the stability of the server. If the donation pack was bad, players won't have an incentive to play. And let's face it... How many people are willing to donate purely out of their "love" for the server and not for the items/reward?
Besides those people who donate, sell the items, end up returning the zeny.
Let me describe you a small circle:
ABC donates $100, and earns 60mil zeny from selling the donation items.
ABC needs equips now, the basics:
Hydra - 3~4 x 4mil ea
Thara Frog - 1 x 8mil+ ea
Matyr OR Verit - 1 x 10+mil ea
AoA OR Ghost Bandan OR Evil Wings OR Angel Wings OR...etc - 1mil + ea
Glove[1] / Brooch[1] / Ring[1]...etc - 1mil to 4mil for a pair of slotted accessories
Pest / Rybio / Disguise - 2 to 10 mil ea
Elven ears - 15mil+ ea
That person ends up buying things from people, and the zeny ends up being pumped back into the community. Take a wild guess where most of those cards come out from? You got that right, OCAs.
The issue at hand is BBs, so let's think about BBs again:
- They spawn Angeling/Deviling/Ghostring/Arch Angeling sometimes.
- The party that spawns the MVP can't necessarly handle the spawned MVP.
- We are talking about 0.03% chance.
I hope you get the point, if you don't... Pity