Unlucky?.....you might want to take a look at the repair records of 140 models specifically...my case is somewhat higher than normal...but not out of line(for a 140,as I know several that own them)....look at a typical early 90's 600SEL's repair history if you want a real eye opener( or for that matter anyone has kept their 140 in pristine condition for several years)...you might even know a few
you are right some of them need repairs and others don't.....the big question is what is TYPICAL for the particular model....
look at the costs for an extended warranty...that is usally a good indication of a particular models history of repairs
as for Vegas..I am not a gambler
hence the reason I purchased the extended warranty years ago when I bought the car
1992 300SD 152K