Well although his rockets keep crashing, the vision, like it or not is pretty compelling. Not read through the thread, and not that clued up really. But i heard that his projects on earth are simply preparation for Mars and beyond. Like his tunnel highway system under US cities is prep for another planet (for travel, artificial atmospheric conditions, possibly mining and quarrying). The electric cars are prep for the moon buggies. Et cetera. His many kids have names which sound like bar codes, and they are groomed to become heirs to a galactic technological empire.
Also why did he call his car firm Tesla? Maybe there really is something to those far out ideas about suppressed technology invented / discovered by Nikola Tesla, that free energy can be obtained from the atmosphere using a Faraday technique, without coal, oil or whatever. Maybe not. Maybe? We know Shell etc patented renewable energy techniques back in the 80s, just to file them away in a drawer and prevent oil being replaced.