It's not like physical media makes any difference anyway these days.
Actual disk often gets just a glorified installer, and even if it includes the entire game you're likely to have to activate it online anyway.
The "own your games" ship has sailed long ago, unless you only buy no-DRM and your own backups.
I got the disc version for used games too, but the sad truth is that where I live there isn't really a market for used games.
Or, well, there is, but the prices on used discs are often barely below retail price, if you can even find a copy.