These are audiophile stores. You pay for the album (roughly $10-$12), and you download a genuine high-quality zip file immediately. You can choose between MP3 320 kbps or FLAC (lossless). This is the only way to guarantee a pristine, original master file.
While a zip file is convenient, consider buying a used CD of Graduation . You can find it for $5 online. Ripping that CD to your computer using Exact Audio Copy (EAC) in FLAC format yields a better result than almost any download. CDs are uncompressed 16-bit / 44.1 kHz audio. You can then zip those FLAC files yourself. Download Kanye West Graduation Zip File High Quality