The eternal discussion...
Somewhere here in these forums was a thread where someone rebuilt his popup camper with Coosa.
There are pros and cons for every material used. Wood rots when not sealed well enough. Aluminum breaks welds when not welded well enough. Fiberglass shells sometimes buckle when not bonded well enough. Problems can be found with all campers, rot is just one of them.
Cost is a major factor, and so is quality control or lack thereof.
I have owned three campers of different design. My current Northstar is all wood.
So.. what do I want to say? Buy what you believe is a good product at a good price, take good care of it, and GO CAMPING!