An 03 500R has been my first bike for the past year year & 1/2. Once I get comfortable with motorcycling in general I will most likely get a cruiser. Question I've got is...why would people choose bikes that require costly valve adjustments every 7500 miles if they can get good cycles with hydraulic valves which do not require adjustment? If you look at the total cost of motorcycle ownership something like the Ninja 500 looks good in the beginning, but when you factor in the cost of chain/valve maintenance over the bike's life, then something like a Honda Shadow Spirit with shaft & hydraulic lifters starts to look pretty good even though the mileage is 10 mpg less. The comparison I really need to make is a Spirit to an M50 though, since they're both middleweight cruisers. It appears to me that a bike with hydraulic lifters is a cheaper bike to own even though it may get 5-10 mpg less. :-\ Where am I going wrong with this analysis?