Wow - that is all getting very heavy.
I ran BMWs as bikes of choice for the company (my company) because of 6,000 service intervals, reliability and a reasonable resale after X years of service
I would chop bikes in when they couldn't be covered by the extended warranty. No garage has a lot to do with what you can or can't do as does limited off road parking. I too would aim for the one tank a day regime to save time and effort, so you didn't have to waste time either finding fuel on the way to work or the way back, you knew where it would be. When you're clocking 1,000 miles a week, the 6k service is a boon. And when you're doing that mileage and the time it takes, I would question anyone on "they do their own servicing". I didn't have the time. I had weekends only and there were things I wanted to do. My regime on the service was to leave work early on the Thursday, drop the bike off and get a service loan, work Friday as normal and collect the bike on the Saturday morning. This gave the garage the longest period possible to find/fix any issues,
I run with panniers and top case - to carry my stuff and to protect me (panniers keep them cars away from your legs)
When I switched from R11rts to the K12LT, it actually saved me money. The fuel use was far lower on the LT and way offset any additional time on service costs. Went through a 99LT, then an 03 to an 05.
The 03 went after 2 years because of changes to the extended warranty. I kept the 05 for 3 years because of a change to the warranty and at 82,000 miles and 3 years, it needed serious work. It was replaced with the 08 GT
That had enough range to do my daily trek and if I didn't ride flat out, was exceptionally economical. Going over a real 85 starts burning fuel, over 100 and the range is dropping
I still have the 08GT, because its covered by the extended warranty. If it wasn't, it would go.
When I was shutting the company up, I had a valuation from the dealer which I sent to my accountant. That "proved" its value for resale and write down
I had a TMax and then the Burgman as cover for the LT and then the GT. Both needed fuel at the half way point. The Burger was the better of the two and I'd still have it were it not for the car than ran into the back of it, destroying it in the process
The mods I make to a bike are for my comfort and use, and don't cover particularly giving better fuel economy. For the LT, that meant a shelf above the instruments for the sat nav and a better screen. For the GT, better seat, screen, wind deflectors, iPod integration, shelf for the sat nav above the instruments, and fuse boxes to get around the electrics