The Kawasaki Concours is similar to my Honda ST1300 and I ride with a guy who has one. The power of the Kawi is astounding (around 30 HP more than the Honda) and they really are quite the machine. The long range fuel tank is great and the handling and cornering clearance are much superior to a traditional "full dresser". About the only thing that Cedar Rapids bike may lack that a newer bike would almost certainly have is ABS and many of the 2002+ models have that as well. Parts for these bikes are readily available either new or used and while they are a little complex and everything is covered with plastic, anybody who can fix an XS650 could do the same on a big sport tourer with a good manual and the right tools.
These bikes were really designed for the European market where 3-500 miles is all the way across several countries and riding speeds are much higher. In fact, 175 km/hr or around 110 MPH is a speed that folks in family cars often hit on the autobahns of Germany and sporty cars and bikes commonly go much faster (some up to 250 km/hr). In fact, the design specifications for the ST1300 were that it had to be able to go 200 km/hr (~120 MPH) for three hours without refueling. That is why I wish mine had the on-board restroom option.
Frankly, there are SO many large-bore touring and sport touring bikes (H-Ds, Gold Wings, Concours, ST1100 & 1300, FJRs and even the older Bimmers) on the market these days for low, low prices that it simply cannot be much fun trying sell new ones for upwards of $25-35K.