For the majority of riders i don`t think there is any need to buy the most expensive tyre on the market
Unless you ride like VR or the likes you`ll never get to the limit of a mid range tyre (i`m not talk ching chang shite tho)
so buy what your pocket can afford and ride to your own limits not beyond and you`ll be fine
If you wanna be a have ago hero
[size=78%]get good rubber and get on the TRACK ! nuff said [/size]