Let's just say, for the sake of daydreaming, that you come into an enormous amount of money and build the largest house in the country, so large that you would either add a TTA or even a monorail to get you from place to place within your own home compound. Which would you choose, the monorail or the TTA? I think I'd probably go for the TTA, personally, with a few stop-off points every now and then. It would be easier to do that with a TTA than with a monorail, that's for sure.