Traveling over 15 miles per hour takes a pair of cross trainers for $50.
Traveling over 150 miles per hour takes a Corvette for $50,000.
Traveling over 1500 miles per hour takes an F15 Eagle for $50,000,000.
Traveling over 15,000 miles per hour takes a space shuttle program at $150 billion for three operating shuttles or $50,000,000,000 each.
To go 10 times faster you have to spend 1000 times as much money.