Wishlist it on Steam and wait for a sale. It drops to under $4 regularly.
A discussion of San Andreas today cannot ignore the changing landscape of how the game is distributed and accessed. In 2004, software ownership was tied to a physical disc and a printed license key—a "CD-key." This alphanumeric code was the user’s proof of purchase and the gatekeeper to installation.
The links embedded inside these Docplayernet files rarely lead to game keys. Instead, they redirect users to malicious landing pages. Clicking these links can silently download malware, spyware, or ransomware onto your PC.
Rockstar’s support team can sometimes convert it. Do not post it online or use it in shady key checkers.