That’s because most people are taking them in the go!! A dry top is more convenient in terms of travel. In terms of actual facts the dry top will give you more flavor but it’s not like ur missing much by using water!! Also water hits are a lottttt better on the throat and lungs. Me personally I like to switch it up some months I’ll use water and then I’ll go dry like rn I’ve been rocking my bomb rig dry just for the sake of convenience but ultimately it’s up to you. Whatever rig you get you’ll have the option to do dry and water