I took a GT for a spin (and a new RT before that) just for fun, I wasn't thinking seriously of buying it. I didn't ride it far, about 40 miles, mostly on the highway around 60-80 mph. What impressed me was the way the bike could pile on the miles without tiring me out because of the great wind protection and ergonomics. I was also impressed with the looks, shaft drive, heated grips and hard luggage.
When I brought it back I casually asked what I could get for my 93 VFR. They gave me a good price and knocked over $3000 off the price of the GT. I decided the next day to buy the bike.
After putting almost 5000 miles on it I've discovered it's a bit of a handful around town and at slower speeds but really comes into it's own when it can stretch it's legs. It's perfectly suited to comfortable fast sport-touring. Now, I just have to find the time to take it on a few trips! Did take one trip though the Rockies in July.
I've only seen one other in town. I think there aren't many due to the relatively high price (lists at $25,000 in Canada). BMW would no doubt sell alot more if it was priced the same as say a FJR ($19,000). Most bikes I see coming off the showroom floor are $15K or less. 25 grand is alot for a bike when you're probably paying a mortgage, making car payments raising a family etc.