a insurance company isn't bothered about the price of YOUR bike, most superbikes can be brouht 2nd hand for £5,000 is nothing, they take the risk that you dont crash into a 100,000 aston martin or something that they'd have to pay out for.
You dont need an aprilla S, the engines die every year if you use top call oil an about 6months with cheap oil, so the maintenance for a race bike is sill especially wen it still only goes at 35 if its legal, an if it aint your insureance is void DOH!
I got a honda Sky for £180 brought two before for £450 and £550 so bargin, only gonna gain money wen i sell it to get a 125 when im 17