Yeah, kind of my thing. Only possible because we have no cold temps. My avatar is a tree aloe, the fan aloe.
My plants have ended up in various locations around here. When you grow them from seed (which the single stemmed tree aloes require) they show all sorts of interesting variation. A fast plant might take about 5 years from seed to flower.
On top of the inherent variation, aloes are very promiscuous, which means that just about any two plants within the distance of a hummingbird's flight path can make hybrid offspring. Around here maybe 15-20 different aloes flowered this winter so the potential for interesting combinations is pretty good.