Throwing my two cents in --- a rear spool stand is all you need to store away your motorbike. A triple-tree stand for the front is a bonus, but ain't needed. When I had my Ninja500 with the center-stand I loved it. Stored it on the center stand and it made basic maintenance very easy. It's a one time pseudo expensive purchase from Yamaha (or SW-Motech), but if you wouldn't mind the look of it on the bike or the cost - get it over the spool stand and call it a day.