As an aside I am on my second set of tyres and have done over 32000 miles so it is possible to get decent wear out of them. Both sets have been P Zero Nero, got 20000 out of the first set (swapped front to back after 10K) and will get similar on this set I should imagine.
Also, they do seem to wear more on the inner edge than the outer, had tracking & alignment checked after having the second set put on and things were OK.