I'm relatively new to the whole scene but I suppose it would depend on the situation. If it were say.. post apocolyptic and there were no smoke shops or online sales I would want a mech hands down unless you know someone who can repair PCB's. (Unless of course there's no electricity I suppose then we are all screwed on charging our batteries) Otherwise I'll be just fine with my K100+ and a crappy nimbus. BUT if I had a choice I'd probably go either a Caravela or a Nemesis with a Magma rda. Though as I do more research I'm sure this will change soon.