Well, the populated areas of California are generally ideal for Aeoniums. If I had to pick one genus that would feel at home in the coastal climate from the Bay Area south, it would be that one.
Regarding the repot ... To be honest, the bigger pots are only really necessary if you want them to continue growing. I have tested the limits with the smaller Aeoniums, and they tolerate surprisingly limited accommodations, but what you've got going on seems to be headed to bigger and better places if you let it. And 3 inches is pretty tiny compared to what's possible.
Aeoniums are not supposed to be real happy in unglazed clay pots, especially smaller ones, because of the way they dry out. I'm not seeing any problems at all with your plants, I suspect you've got the watering dialed in so nobody's dehydrating.
Here some pics of Aeoniums in the park at the end of the dry season (last significant rainfall was in March). Lookit those tiny, dirty rosettes! I find this seasonal look fascinating in the context of the extreme conditions these plants can endure (total neglect in our climate, with 7-10 inches of annual rainfall in a good year).
A step back, showing where someone harvested cuttings to take home.
Note compatible plants at left (agave, aloe) and in front (Deuterocohnia x3). Very nutrient poor soil, mostly alluvial sand.
Brighter days on the patio, here is Aeonium nobile and her new heads.
