I've got 2 years / 10,400 street miles on my DP race seat. It's the neoprene pad version, P/N 96984107B.
Paid $156.69 for it two years ago at Commonwealth in Louisville, KY.
It has a bit of wear on the left side from the way I sit on the bike. I've done some 200 - 300 mile rides with no issues. It's a great seat.
My '06 999R Xerox came with the Sargent seat on it. After one ride, I took it off and put the stock seat back on. One of these days, I'm going to get the neoprene race seat for it.