That's really something, KD. Adeniums, unlike most plants, are certainly not "cooker-cuttings". I am seeing the same phenomenon with my 9 mo. old plants. All are taking on their own growth-personality. Mine are all obesum and none have that interesting caudex formation yet.
Cheryl, our addition was a "sun-room" as well until the cost passed a certain point. Then it because a "solarium".
@Ursula has named it the "OPP room", orchid and plumeria paradise.