Supportership Question (in New players)

I am thinking about supportership so I can get that nifty favorite thing.
Quick question: I was looking through the wiki and it said that there have been a bunch of different supporter items.
How often is a new one introduced? Curious because if I do this I would hate to get one item and then a new one I really could have use come up the next day

you will be able to get the next item, and every one after that for an additional $6 each. The HoC is definitely worth your money to get. If you use a team that can utilize it (which you do), it is invaluable. And say you don't need it, you could easily sell it for enough to pay someone in CB cash to buy you the next supporter item, and keep some profit for yourself. Basically, it's win/win ^_^

They're introduced every changemonth, which is every 3 months. Last month was the only month a new one was not introduced, but they're usually every 3 months.