HSA can make sense if those on the plan have the need for preventative care but are otherwise healthy. Southwest gives you $750 towards the HSA and you can earn another $250 for you and your spouse pretty easily (couple mouse clicks every week and a 15 minute screening). HSA funds go in pre tax and aren't taxed on the way out, plus grow tax free. That's better then any other retirement going, so I pay any medical expense using after tax dollars, never touching my HSA money.
However, if we ever start needing lots of medical care, I'm enrolling in the RP.