So anyway here's is my suggestion may need tweaking. A package (for gamers) who like to play, don't mind a little money but are not too bothered about taking money (black gems) back out of the game.
The gamers pack or yearly pack consisting of..
Constant subscription on the account for a year (366 days) or for that server (if they delete that server go another the subscription carries over to other server assuming its still within the 1 year period of subscription) I would imagine most people stick to 1 server with his pack anyway.
All Global 7 day services always active (for the year of subscription)
5000 starting black gems and then 1200 each month for 11 months or just 2000 per month starting with 2000
= according to your current costs.
4188 for 366 days subscription
29692 for all global service for 366 days
18200 for (5000 start, 1200 each month) or (just a straight 2000 a month) = 22000
=52080 black gems
$473 worth
do the package at $200 (yes huge discount) however many players will still add more black gems to account and probbaly added alot ebfore they decide to get the package.
and the rule that the player cannot take black gems out of the game whatever is left can only transfer to next server maybe or not!
I appreciate it would take some setting up with he payment system because currently it set so you can take money out with subscription accounts..
However I am 100% sure this kind of package would sell a lot, make you good money, and knowing they can not take the money back out and would appeal to you I am sure? and definitely to many gamers who don't want to keep adding money to a "free game" but enjoy the game more than many other popular free games or games of the same genre.
Again it is another way to attract players which in turn brings in more people spending on your game making it more successful and known.
busier servers would be alot more fun too
