Yu Gi Oh has no set rotation. They also have a very active Restriction list with things coming on and off a lot. Every 3 months is a different format because of list changes and the changes are hotly anticipated. It's a pretty cool system. YGO also has extreme power creep.
A bigger restricted list would not solve the problem of "if I can't get every pack I don't want to play" and "It is too expensive/daunting to start playing"
I think a chapter pack rotation with a Core Set II with some reprints would be the best solution.
As did AEG, FFG at one point, Decipher, etc, etc...