You don't sound like the kind of guy who should be shopping for warplanes. They are expensive for a lot of reasons, and you can't expect to get high performance without a price tag. (A Bugatti Veyron costs $1.9 million on the hoof.) The technology (of which there are many involved) is not "useless." We simply don't know what the cause of the accident was. Time to be patient and not hyperventilate.