The starting price of the group was initially $14.99 every month. Current members never will have to pay a dime more than what they started with. Loyalty is rewarded.
The price for members who joined in January was $23.99 and February was $38.99. This was justified by the upgrades and additions made at that time.
The price for members joining in March will be $43.99. This is justified by the upgrades and additions made at this time. Furthermore, it would be unjust to offer improved services at the same price when previous members were willing to pay their price without these new additions.