"Is there anything that humans could realistically achieve that robots could not at a fraction of the cost?" Partly being funny, but: * On-the-spot judgement

"Is there anything that humans could realistically achieve that robots could not at a fraction of the cost?" Partly being funny, but: * On-the-spot judgement calls to abort/rescope/redirect mission as is useful * On-the-ground analysis (by experts in a given domain, e.g: Geologists) * Just plain being a human on Mars to establish how it can be done * International political capitol (this is often understated but is very relevant) * Ability to brush off solar panels after dust storms(?) * Disprove those doorway pictures with people for scale? Regarding establishing how it can be done, if we elect to send robots because humans are too frail, at what point do we even leave Earth? The whole universe is one big deathtrap. Is the logical conclusion that we just stay home and never leave the (relative) comfort of our gravity well?