I think I could walk into any music shop anywhere and with a guitar off the rack, a couple of basic pedals and an amp I could sound just like me. There's no devices, customized or otherwise, that give me my sound.
I think the same way about theatre, you go out there and you are creating a world for a moment that can actually have a real impact on people, present some kind of story that gives you something to think about when you walk away, feeling enriched - if it works out well.