Bought a game redeem code online, redeemed it on my PC logging into my own PSN account, but the game does not show up in my library to add to the download queue.
What happened? The redemption is not immediate? Must wait some time before can download? incompatible region?

2 hours after redeeming the game still don't appear in my download list
Hopefully later when I go home and turn on the PS4 it will appear in the library.....

If you have streamyx 4Mbps, it's already good enough to download majority of games overnight. CD games will never be as dirt cheap as digital games over time. Ther are lots of awesome AAA games at dirt cheap price during promo if you are not after the most trendy new release. If you're the type of gamer that always want the latest game, then CD game is the best way to go since you can sell them once finished and move on.