It comes down to how many rods you need to be able to carry and how much you want to spend. The Carmate is expensive in comparison to most. If you're talking two to four rods, the Plano 35102 (I think that's the number) will do the job. If you need four to six, the smaller Bazuka is good. Carmate is good for anything for four up to ten although you can squeeze one or two more in if you really know how to pack it.
For eight to God know how many, the Plano Airliner is a monster!