Coolerdor
Many people buy, collect and store lots of cigars - boxes and boxes, literally hundreds and even thousands of cigars. A common way to store several boxes of cigars is by converting a cooler to a humidor. That is what we call a "Coolerdor"

A succinct description on how to quickly make a Coolerdor can be found in the Puff forums here:

http://www.puff.com/forums/vb/nostalgia/215197-how-build-coolerdor.html

Other Options
In the old days cigar smoking was seen as some kind of sign that you were at least moderately wealthy so if you are then there are a couple of other storage options you can look at for your cigars.

A number of companies offer cigar smokers something similar to the temperature controlled wine storage units that you see in department stores and on the Net. These cigar units are relatively small but still have a lot of space for your cigars and if you're likely to only have a handful of cigars on hand at any one time then something like these storage units are probably a bit too much.

Equally too much for most people would be a walk-in unit to store your cigars ... they do exist but they're going to cost you many thousands of dollars so perhaps the plastic box option is starting to look good?

Whichever option you choose to store your cigars just remember to ensure that it really is capable of storing your cigars in an air-tight and humid environment and if your storage option can do that then you'll always have fresh moist cigars to enjoy.