There are several practical reasons why this specific legacy version is still sought after:
Generate production-ready 2D drawings from 3D models automatically. Solidworks 2012 Portable
Create complex parts using extrusions, revolves, sweeps, and lofts. There are several practical reasons why this specific
Even as a legacy tool, SolidWorks 2012 offers a robust suite of tools that cover most mechanical design needs: which can sometimes lead to crashes.
Handle hundreds of components with standard, mechanical, and advanced mates.
Modern versions of SolidWorks require massive amounts of RAM and high-end GPUs. The 2012 version can run smoothly on older laptops or budget workstations.
SolidWorks is deeply integrated with the Windows Registry. Portable versions must use a "virtual registry" to function, which can sometimes lead to crashes.