I've come to realise the perfect mileage to put on SS bikes is anywhere between 1000kms to 5-7000kms max per season to get a good long hassle free use of it. this way you will feel your ss bike is reliable and things don't go wrong often.
SS bikes are like ice cream, eat it slow and enjoy it, if you eat it alot and too fast your brain will explode.
Almost All SS bikes have reliability issues like clock work, like stator going out, then rectifier going out, betteries dying out, fuel injection problems, then when the bike is perfect, your tires are gone, once those are gone, now your brake pads are gone, once thats gone, you need new brake fluids, then your fork oil seals get busted got to replace those, then fork oil, and so on...these things can only take abuse for the first 20 thousand kilometers after that, ride it normal or open your wallet with tons of cash.
if you are a detail freak, its even worse.
just to give you an idea just 2013, for just one of my ss bikes, i droped $2000 in towing for broken down miles away 4 times and for 50 over once and $600 in fines, and $2000 in lawyers for 2 tickets, got everything dropped and good to go, and about $2000 in regular maintainance. i.e oil changes, tires, brake pads, fluid, tune, electiral issues etc about $1000 for things like rectifier blowing water pump or a stator...and about $2000 in mods and accessories, before i knew i would have to make all those previous unforseen costs.
You will need anywhere from $1000 to $5000 for 7 moths of riding, everyday as a commuter for unseen costs.
if you get a SS for leisure, you're likely not even going to spend $1000 a season or even get caught for any violation.
Not trying to scare you but, i myself went back to commuter street bikes and only use SS bikes on professional race tracks.