Part of me is inclined to agree with you, however I helped my friend pick out this car a few years ago, and fell in love with it immediately. This is my 4th W123, and, although it's my favorite, I love the character of the W124 with the straight 6 sound. It has a rumble and a feel that the newer V6 just doesn't have. And, since I've done most of the maintenance on the 300E for him, I know the car. I am going to go ahead and have the head gasket replaced and a valve job done in the next few months. I'm going to be calling and getting estimates this week.
So, the wagon is for sale...
88 BMW E32 735i (make it go away)
95 Volvo 960 "Inga" (valve problems)
95 Nissan Maxima (the indestructible)
89 Ford Ranger XLT (ugliest truck in the South)