AD's Premium Membership gives you a number of increased limits across the board. It expands the number of Albums you can create from 20 to 50. It also expands the amount of Commissions entries you can have from 10 up to 20. It helps us pay for server and development costs.
This is for those who want to be unrestricted in their use of AD's services. Removes all limits. For those who want to help out a bit more!