A good set will be rebuildable. Not sure about those brands specifically though. But this is a valid concern.
A major reason I am hesitant to run these on a daily driver. I know with the shocktech and JIC setups, they pretty much assume theyre going on a race car and will be torn down and rebuilt somewhat frequently. I dont think they would take my 35k miles per year very well. The tiens or nexs might be better, assuming they were made with the street car in mind. I honestly dont know enough about them.