They have very little run time. They were mostly on display.
These are very rare and hard to find. Packaged weight is 12 lbs. The item "O-Scale 4 Car MTH Southern Maddison Heavy Weight Passenger Car Set" is in sale since Thursday, December 27, 2018. This item is in the category "Toys & Hobbies\Model Railroads & Trains\O Scale\Passenger Cars".
The seller is "trains-n-more" and is located in Clermont, Florida. This item can be shipped to United States.