Hello!!
I don't use racks, so can't comment on that. But I do know that they are more practical and easy to maintain, so people with multiple snakes benefit from that.
For me, I've been fascinated with snakes since I was a kid. However, having one as a pet was out of the question due to my father being "afraid" of them.
It didn't take me too long after moving out of my parents house to start into the hobby though.
For me, I love the mystique of snakes. I love handling them watching them explore and roam, feeding them, and just observing them and their mannerisms and demeanors.
It blows my mind that an animal with no arms or legs and basically just a mouth for self defense (many of which can't do much damage anyway) has survived in this world for so long, while thousands of other creatures have gone extinct.
The fact that there are so many species of snake is something I enjoy as well. I currently keep 4 different species and love them all for different reasons. (I would be happy to elaborate more on that later if you're interested in keeping any of the species I keep)
One other big factor in why I enjoy keeping snakes as pets is that they're super easy to keep. If you've done proper research and set up the right equipment the right way they are super easy to maintain. They are also very inexpensive to keep once the initial investment is made, but enclosures and equipment can get pricey if you go higher end.
To answer your handling question: you're right, snakes generally "tolerate" handling and don't seek it out or require it. Some species are more docile than others, some are more active and inquisitive, some will just chill like a lap cat.
So choosing a species will be very important for you.
You're in a great place to learn, so stick around and ask lots of questions. We're happy to help and will definitely help you pick a species that you'd enjoy.
Best of luck!!