Concorde made an operating profit. Not a huge one (how could it, with fourteen planes flying), and it didn’t recoup development costs, but it was in the green once that initial cost was paid.
It was able to coast, eventually, but that’s some very fancy accounting.
“French Transport Minister Daniel Hoeffel, saying France ''will not and cannot abandon Concorde,'' signed a new agreement with Air France this week. The French Government, which with Britain had spent more than $2 billion developing the world's first supersonic passenger aircraft, will pay 90 percent of the plane's estimated operating losses for the next three years, compared with 70 percent in the past.
Under the new pact, the French taxpayer will contribute $66 million this year to the cost of Air France's champagne-and-caviar service linking Paris with New York, Washington, Caracas and Rio de Janeiro. In 1982, when losses are expected to decline slightly, the subsidy will be about $64 million, and in 1983, $59 million.”
If California High Speed Rail loses a little bit of money, I won't be too upset by it. Unfortunately the up front costs are much higher, but at the same time, massive, massive infrastructure development is happening in California all along the length of the state, and the government is acquiring the rights to develop public transportation both now and into the future on that land. Again, there are worse ways to spend the money in my opinion.
Bad for climate. Bad for the people below enjoying the noise. Bad for all the other things you could do with 2 billion. (A lot)
Only good for people who want jetting quickly around the World.
And it is good for material research, but that's the same argument for military development.