First, Colorado Hyperloop has a new Facebook Page! It can be found here: https://www.facebook.com/coloradohyperloop
There is a great tumblr on what costs more than space exploration. The writers of the blog first pick a subject:
It’s impossible to say exactly how big the economic impact of the 2014 California Drought will be, but what is certain that it will be really, really expensive.
Then they compaire it to some type of space exploration:
Approximately eight days from now, the Global Precipitation Measurement Core Observatory (GPM, for short) will launch on board an H-IIA rocket from Tanegashima Space Center in Japan.
With that they contrast the difference of the two costs and how space exploration can minimize the cost of the chosen subject. I believe it is pretty effective.
However, since the hyperloop isn’t built yet, it is pretty hard to compare prices. But here is a comparison that can be found here by Brad Plumer:
And here’s the best part: Musk claims a Hyperloop would be ridiculously cheap, with tubes from San Francisco to Los Angeles costing just $6 billion or $7.5 billion (depending on whether the pods could transport cars). That’s just one-tenth the cost of California’s tumultuous high-speed rail project.
What’s more, even if the price tag did end up 200 percent higher than what Musk is promising, that might be still a bargain.
This is more just a general note of caution. Early cost estimates for big new transportation projects are almost always wrong — and, at least if history is anything to go by, that’s not something that better technology will necessarily solve.