With a price of $699 (or $199 for an upgrade), Vegas Pro 11 was a professional tool out of reach for many hobbyists and students, creating a significant incentive to find a "free" way to use it.
Unlike many "crack" tools that were instantly detected as malware, earlier, well-coded keygens sometimes appeared functional and safe, encouraging widespread sharing. i--- Sony Vegas Pro 11 Keygen Digital Insanity 16