: Most "generator" executables are actually trojans. Once downloaded, they can encrypt your files (ransomware), steal your saved passwords, or use your computer as part of a botnet.
: Cracked versions are notoriously unstable. Imagine losing a complex cutting layout for a high-end kitchen project right before you head to the saw.
: You lose access to bug fixes and new features, such as improved nesting algorithms that could save you more money than the cost of the software license.