Well, at this point, I'm still dreaming of having oodles of snakes. But I'll tell you what I'd do and why. I would opt for mobile racks. Here's why:
1. If there's any reason you want out of the snake business, you can sell them.
2. If you move, you can take them with you.
3. If you get more snakes than your current arrangement can fit, you can re-arrange them to optimize space.
4. And any other reason you may find yourself wishing your snakes were on a different side of the room or whatever.