User blog comment:MapiyaH/Things to do/@comment-44638514-20200116154512/@comment-38439752-20200116164341

That's a little bit different, though. The point of the list/table I'm talking about is to show people the cost of unlocking them BEFORE the certificates are available in the Purebreeders. Not all players play actively enough to be able to unlock all three every month, so when the next round is announced (always before the current round ends), they want to know how much the certificates for the next round cost. That way they can decide to skip on unlocking one of the current ones, if they prefer one on the next round and both cost too much for them to feel like they can collect enough for both.

It's one of the most requested charts to be added to the wiki, and with the amount of questions popping up each month near the end of the certificate round, it seems like it is requested because there is an actual need for it.