Opinion about some good and robust Polygonal-SDS modeler under 200$

 From:  Frenchy Pilou (PILOU)
8090.23 
Even Silo is not more evolutive, it's yet a mature program! ;)

Glen Southern a modeling master has made some master pieces with it! ;)
http://southerngfx.co.uk/tutorials/silo3d

Pure Box Modeling!