SDL never, well until I'm broke.
Recently I have some what "thrown in the towel" with it by making it a summer only car. I simply do not have the time anymore to deal with it all year round. 7 months out of the year, pretty much when I'm at school its in storage in the garage. Next year it may be upgraded to weekend toy.
Old cars can be a bit of a pita as I have learned, at this point in my life I simply do not have the time to try to drive them on a daily basis anymore.
But yes with any old MB you always have a to do list. You can make that list very short though with enough time, effort, and money.