I understand racks have a practicality when it comes to breeding and owning a large amount of snakes to save space, but other than that are there any specific reasons why more people prefer racks over custom cages or large enclosures?

Personally if I am going to spend anything more than $100 for a snake I would want to be able to view it and have it in a nice enclosure not a rack system.

1) Reasons for rack system (BESIDES BREEDING)?

2) Your opinion rack or enclosure i.e. custom, large aquarium, vision cage, boaphile cages etc.