Line of Abandoned Rail Well Cars ( Cargo Container Cars )

Quakerstown Pennsylvania 
goo.gl/maps/WQHRYktUPAstNRPy8
The GM image is a bit outdated - there are 2 rows of well cars at the location now. They appear to have been abandoned within the last 5 years, I can not find any specific information on why the long lines of well and box cars are sitting on a discontinued spar. Maybe long term storage, or waiting for repair ?
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Picture I had taken on June 19 2021
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The Bethlehem Line remains owned by SEPTA and is used for freight service by the Pennsylvania Northeastern Railroad between Lansdale and Telford and the East Penn Railroad between Telford and Quakertown. The Quakertown-Bethlehem section is out of service, with several portions serving as the interim Upper Bucks Rail Trail and Saucon Rail Trail. It is not officially abandoned.

See en.wikipedia.org/wiki/Bethlehem_Line

There  are 1000's of wagons on disused railway   sitting like this all around Penns...

See
www2.readingeagle.com/article.aspx?id=234087