Give the PR2s or PR3s a try (I'm cheap too so go for the PR2). Best tires I've had on any bike in any condition. They stick from the get go, are awesome in the rain, on the dry, offer great handling, and because of the different compounds I'd suspect you could get an easy 15000 miles on the front and a good 9000 miles on the rear. My mechanic owns a Kawa Concours (heavy beast) and he can put more millage then that on it. I now have winter tires on Versys after trashing the stock ones, but next Spring I know PR2s are going on the bike. I have them on my 570lbs MT-01 and the rear is still good after 7500miles. The only tires I tried that had as much grip was the Metzeller sportec M3s (back in 2009), and the rear tire wouldn't last 3000miles on my Speed Triple.