A month ago, I had the same questions. I went to this auto repair place recently, and they have this svx that they've been working on it for a long time now. he was saying how this one little part was $300. and that parts are hard to find.
Don't get me wrong, I really want to get one, but having to worry about future maintenace is something I wouldn't look forward to.
the good thing about the RS is that the maintenace costs will be pretty much the same for many years to come.