A couple of days ago I visited a Butterfly Conservatory. Pretty amazing place.
Not unusual, the visit begins through the store - a market filled with every "classy" butterfly item for purchase imaginable. Tickets to the conservatory can be purchased at a window leading into the Conservatory proper. A visitor enters into a room filled with posters and a video introducing the life of butterflies and some pretty amazing photography of butterflies. Next, another set of doors into a small air-conditioned space followed by an entry into a greenhouse-type room with a walkway, multi-flowering flora and yes, hundreds, maybe thousands of all kinds of butterflies (yes-alive). At the end of the walkway, through windows, is a little laboratory with different stages of "breeding" butterflies. Signage helps describe each stage and the type of butterfly.
No doubt, you've visited a place like this too. It's a great educational experience as well as a sustainable model that has two forms of income. And, the place was packed with visitors.
Oh, did I mention: the Conservatory is not a nonprofit? Nope -- looks like one, acts like one, but isn't. So one might ask, why not?