i can't answer for anyone but me, but mostly it all about the cash.
in any new sport, ya kind of have to start small an hone yer skill before playin with the big dogs. my first car was a 5.0 crown vic, big, like drivin a damn couch, but i learned a lot about the 5.0 engine, how to handle, an manuver 200 horses of detroit steel safetly an reliably.an i transfered that to my mustang, an i respect it, know my own skills as a driver an know what i'm capable of doing with a v8 musclecar.
NOw personally, i love v twins- Sound, design, power, image- i'm an ol skool rocker that likes raisin hell on slick piece of chromed out ground pounding West Coast Chopper or chopers inc custom. but do to the exclusivity of these beautiful machines, the price is obscene- $75-100k for a sweet kustom..even a base HArley you could buy for the price of a new mustang. and for novice riders(younger or new) to perfect cycle riding skills, an become a safe rider, theses are better to learn on or drop than a $30,000 harley,and can usually take abuse a lot better being made of mostly plastic an fiberglass... plus their relativly cheap an will waste just about anything on the road.
its all about progression IMO, speed aint everything w/ me as an artist i love a kik *** design. an i love a clean piece of thundering metal shakin windows as it storms down the road
, but as aspiring rider, i plan to get a beater to learn the ropes before gettin a boss hog. it jus makes sense IMO