Because it's a race bike you doofus, and every tiny bit of an edge is worth chasing!
If the NSR had continued with it's developement, I'm sure it's have USD too - if only because that's what the market demands!
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball