I've had an '02 R1150R for about seven years, and 32,000 miles, and the parallel between the BMW cages and current bikes is a valid one .
Other than the routine mechanical maintenance, you are going to get in over your head in a hurry, with the electronics, without the diagnostic tools, it's nearly impossible to do any worth while troubleshooting on your own .
Mechanically, the bike is nearly bulletproof .
Things like removing the battery are time consuming, but like anything, with practice, you can get good at it , the first time I went for the battery, to change the OEM serviceable type, to an Odyssey sealed AGM battery, was 90 minutes, last time was less than 20 minutes .
If you want something you don't have to mess with, it's a great bike, if you want something with the 'character' of an airhead, it's the wrong bike .
I've made the comparison between my 1150, and R65, and the 1150 is an F-15, the R65, is a WWI bi-plane, it's that much of difference between the two .
Power, is something you'll get addicted to, and at least in my experience, 60 mpg is not uncommon on rural highways, at 75 mph .
Unless you get a 'lemon', you won't be disappointed with the bike at all .
What kind of prices are the bikes going for in your area ?
One of the main factors that led to my acquiring mine, was the fact that it was $8900US, plus taxes and the usual other charges, it was a deal that felt I couldn't pass up, never have regretted getting the bike .