Nice bike, but I like the naked ones better.
Z1000 is a great bike.
FI, nice chassis, great ergs (you sit up comfortable) and the price is awesome.
There is one in Denver with tons of mods and only 2250miles for 7k. (Just the exhaust alone is 1300, then all the levels and pegs are billet, nice sliders and other mods, plus the tail mod so your lamps are flush, same with the front turns.)
I'm torn between that, and the Yamaha FZ1, or going plush, and the FJR1300... Very nice bike.
I have a KTM 620 RXC enduro that is a blast to ride pretty much everywhere I want to. (Street leagal, and off road it's better than some dirt bikes.)
Then again, a Vstrom would be fine too. (Either the 650, or the 1000, they are both fun to ride and comfortable on the long hauls. Besides, they handle dirt fire roads, and not many "street" bikes can do that well under 10k.) Some BMW's but again, they are not cost effective.