For beginners, the cost of a PLY 3D model usually ranges from free to around $50, depending on complexity, source, and intended use.
Free models are widely available on platforms like Thingiverse or Sketchfab (free tiers) for basic practice. Paid options ($10–$50) from sites like TurboSquid or CGTrader offer better detail for simple designs (e.g., characters, household objects).
If you’re new, start with free PLY models to get familiar with editing or 3D printing—this helps you figure out what features matter before investing in paid ones.