I have a Primeweld 225 TIG, with a CK torch, and started out with the pedal - I've since switched to the button they included with the welder.
It's just more intuitive for me, and I'm getting better welds with it, so far.
Maybe, it's because I'm getting old, and don't have the coordination between my brain and foot, that I used to ..........
As far as gas hose - I got one of those leather covers for the hose and lead - I think that will make any hose last longer.