Here's my situation: I have a '91 GSPD with 76000 kms on it that works just fine. Looks great too. I've only had it for a year and a half and have no service records, though I was told by the seller that he brought it in from Germany and it was a one owner bike owned by an older fellow who sold it due to failing health. I believe this to be true. I enjoy this old bike for putting around the back roads on and can do the basic maintenance on it: fluid changes, adjusting valves, that sort of thing. I'm pretty mechanically "sympathetic" and keep all the small things in order but don't have the experience or knowhow to tackle anything major. Here's the issue in my mind. These bikes have a whole lot of potental issues: drive shafts, rear main seals, transmission problems [usually at around 80000 kms from what I read], missing circlips, unreliable charging systems, front brakes that could use upgrading, and I'm sure more that I'm leaving out. All of these issues are expensive to repair and could easily be in the thousands of dollars. That doesn't add up right to me, there are just too many good, reliable, cheap to run bikes out there, though admittedly the old GSPD has a style and a look that makes it special [but at what price?]. So what to do? Ignore all the potential trouble and keep riding what is a great working bike that I love or just part ways with it before something bad happens? BTW, I've had 20+ bikes over the years, including 10+ BMW's and I've never had any issues that I would consider major.