Borderland GOTY @ 7,50$ (Steam)

Same price. Most the people just sounds like disgruntled buyers, one being overseas and doesnt have a proper internet connection and the other apparently not using steam.

"Requires Steam account for game installation and activation"

Anyway if you check out the rest of the comments, people give it good reviews and the bad ones are from a fairwhile ago. If you want the game I'd recommend buying it now or if you are still having doubts, wait a few more weeks for the summer sale

So the reviews for both the disc version and the download version are the same?

Yes, but it said you were given a code, which you would also activate on steam, so it should be kept there for future download, I fail to see how a steam game wouldnt recognize you own the content already