Kerry,
I know what you mean when it comes to BMW RT's, my brother in-law had an R1100RT. It is a great sport tourer, but you really sit up high.
I owned a 2000 K1200LT. Very good handling and comfortable. I think it had a 6-gallon tank and got great mileage giving me unbelievable range on a tank. Six-hundred-mile days are easy, and I have come close to covering 1,000 miles in a day. My wife fell asleep many times in the back seat. The LT was like a luxury car, adjustable heated seats, electric windshield, heated grips, cruise control, reverse, AM-FM-weather band radio and a 6-disc CD changer. It also had anti-lock brakes when most bikes did not. I removed the CD changer from the side case because it took up valuable space. My big gripe is BMW had ridiculous maintenance requirements. Going to the dealer for a 5,000-mile maintenance was $500.00 and a 10,000 maintenance was close to a $1,000. After the first maintenance I purchased a factory shop manual and a pneumatic motorcycle lift. While parts weren't inexpensive, I saved a lot of money while still satisfying the warrantee requirements. In summer of 2005 we had a trip to Memphis scheduled. I ordered a new rear tire from the dealer because at the time only Michelin made the correct tire. Tires were back ordered from Germany and wouldn't be available in time. That's when I purchased my 2005 Road King Classic and never looked back.
My opinion is Harley's are much easier and cheaper to maintain. I can clean or replace the air filter in five minutes. With Hydraulic lifters no valve adjustments required. Spark plugs can be replaced in five minutes. The two Harleys I have owned have never leaked oil or broke down. But if they do, Harley has a fantastic dealer network, BMW service can be hard to come by especially in rural areas.
K1200LT on the lift.
IMG_0364 by
Lawrence Alexander, on Flickr
This is how far you need to dig before you can replace an air filter.
IMG_0378 by
Lawrence Alexander, on Flickr