I was deciding between the ST and ST3 for some time. The decision was made straight away once i started up both bikes and just listened. Ducati is beats the competition by miles in this department. The rumble coming out the DucatiĀ“s pipes is incomparable to anything else. Especically the Triumphs measily whine which sounds like a scooter. for sheer excitement to the ears I chose the Duke. And wasnt too fussed about spending the extra couple of bucks either.