I love my R3T, but it's not really a "touring" bike, especially with the loud pipes. Probably an Ultra Classic or Goldwing addition to my stable sometime soon.
I guess it depends on your perspective. In 1965, the detuned single carb Triumph Trophy was a touring bike. In 1972, the Honda CB750 was a touring bike. In my opinion, if you don't care about "listening to your tunes," carrying enough extra stuff to satisfy a pillion, having cruise control and a tach, or having a dealer every 100 miles, then the Rocket is a pretty doggone good touring bike.
If you have a picky pillion, a strong desire for audio diversion, or the need for a button to hold your speed and a dial to tell you the engine rpm, the Rocket's not going to have those things.
I traded my R3T on a K1600 because I had to have all the stuff that goes with a real touring bike. Satellite radio, built in GPS, cruise control, top box and heated grips, adjustable windshield from the factory, etc. etc. etc. I was done with the K1600 in about 7 months. I had another R3T 3 months later, and this time I doubt that I let the R3T go again. Its really a special machine. It reminds me of the Black Prince, or of the Brough Superior. Just an outstanding mount, with very special appointments.
The Rocket is what is is, and if you want what it is, there's nothing else out there.
FWIW, I don't want the R3R because I prefer the K1300S, so to each his own. That's why they make so many different types of bikes. Can't turn a Rocket into something its not, but an R3T is a decent long distance bike if you know how to pack light, and you don't have a picky pillion.