Lang Tank vs Rolled

[ADTN]

I am looking at purchasing a Lang smoker and I am running into both the older tank style and the newer rolled style cookers. Any thoughts on pros or cons between the two styles?

 

[Callahan-que]

The rolled are 1/4" thick steel. The older tanks are a little thinner but I don't recall how thick.

 

[Chester]

The newer models tend to have a little better interior layout. Extra grates on slides etc. the older ones usually had a shelf on legs.

Cooking wise, they are about the same.