Originally Posted by
Dastardly
I would personally go for the cheapest/simplest one that does the job.
The simplest ones actually seem the best. The gym I go to has a very simple cheap rack that has seen heavy continued use since the 1980's.
Avoid gimmicks such as the ability to fit extra attachements. A rack is a very simple thing, there is no need for them to be expensive.
Just examine details like the quality and usability of the hooks. That you can set the safety bars at the right height for use as bench press etc. Little things like that.
Also make sure it has fittings in the right places so you can bolt it to your floor/wall. Very useful if you are doing band-work.