Mechanical CAD software like Solidworks and PCB layout software like PADS is expensive and sold through resellers. I can't compare prices between different vend

Mechanical CAD software like Solidworks and PCB layout software like PADS is expensive and sold through resellers. I can't compare prices between different vendors without giving them my contact information, which results spam. There are a few semi-exceptions (Sketchup for mechanical CAD and Eagle for PCB layout) but neither is strong competition for the market leaders.