Good questions. now let me see with my limited memory if I can remember them 
I ORIGINALLY did not keep Reptiles as a kid. My FIRST passion was the pigeons outisde my window in my Brooklyn projects along with the neighbors Chickens, who used to crow at 5 a.m. every morning.
I didnt really keep any animals at all until my Father died in front of me when I was eight, this necessitated a move OUT of the projects to my wicked aunts house in White Plains N.Y.
I ended up in Calif, and here kept literally hundreds of different types of fish, bred dozens of them. This lasted a LONG time.I worked in fresh and saltwater shops, for wholesalers, went to meetings etc. Took pictures, raised my own brine shrimp, infusoria, glassworms....you get the idea.....
Then came birds.....which I kept, bred and wrote articles about for about 8years.Then I had a short stint as a Bird Keeper for the San Diego Wild Animal Park.
And along came reptiles with a vengeance......
My first viewing of the Eastern Indigo snake was in the **LITTLE GOLDEN BOOK OF REPTILES** (age 6)
Funny how you get programmed as a kid, what influences you..
Many, many years later I sold my adult male(aka;"Monster"
to Chuck Elliot and picked up some neonates from him the next season.
That was a long time ago..............
Its been an obsession ever since..
I would like to tell you that I made my "living" from Reptiles, but as owner of Aztec Reptiles, sometimes sales were goo, at other times they were bad. I do know that a good percentage of people that own reptile businesses work a f/t job also. I've done both.Hope to do it again one day, but a LOT diffrently.
I will say that it is really cool to keep something as an adult that you only fantasized as an inner-city kid when you were a youth.
Age has its advantages ;>
And I always know where my teeth are(Right on the counter where I left em') 
Merry Christmas,
Fred Albury