Got the triple you won't regret it. I'm on my second 1050 in two years, 12months and 32000K on an 05 Sprint and 20000km and 7months on an 07 S3.
I LOVE the S3. A much better bike than the Sprint. Put a rack and some luggage on it and tour or commute anywhere.
Sure the lack of fairing gives a bit of wind pressure above 130kmh, so lean into it a bit.
The ONLY 2 things the S3 doesn't do as well as the Sprint is:
Seat comfort - so buy a rug or Corbin or something
Range - it only has an 18l tank compared to the Sprints 20l.
For everything else the S3 is way ahead. If you're a bit over average, pump up the preload, stiffen up the damping on the front, and she'll take you anywhere in comfort.
Why am I comparing the S3 to the Sprint? Because the Sprint is like the ZX1100 of the 2000's, not quite your naked Z1000, but close. I also had a 2000 ZX9R and the S3 has about as much wind protection, better ergos and much better engine. Isn't the Z1000 just a bored out ZX9 motor (albeit with a totally different frame)?
One of the tricks with the seat on Speedy, is to sit back INTO the rise, lean the torso forward into the wind and go for it!
Oh, and did the other guys mention the linear torque curve, the growl of the triple, the nimbleness of a 189K naked bike with about 130horses at the crank
Russ