Rhino is $995. Fusion 360 is $297/year. Solid Works is $3995 with an annual maintenance fee of $1295.
Let's compare them to photo editing software and the likes.
Adobe cloud subscription is US$52.99/mo (all apps -> Photoshop, Illustrator, After Effects, etc). If you only need Photoshop, the price is US$20.99/mo. Affinity Photo is $49.99.
Nah, we have good opensource photo editing softwares like Gimp and Krita, a good opensource vector editing software like Inkscape.
References:
https://www.autodesk.com/products/fusion-360/pricing
https://www.engineeringclicks.com/solidworks-price-guide/