Autocad costs that much because Autodesk behaves anti-competitively and has locked firms into their proprietary tooling / file formats / training and the firms have no choice but to keep paying them.

Their predatory behaviour towards the engineering industry is literally why I taught myself programming and switched to software development.

They are a prime example of why you shouldn't build your company around closed source proprietary software, but open source software that can be forked or self hosted in a worst case scenario.