I bought those included games for 6£ on a different site. This one you get akrham knight aswell.. #feelsbadman

Well, anyone that hasn't bit yet and were fans of the previous games, I'd say to think twice about getting this one.
There's the many times stated system requirements being pretty hefty even for low settings, but the main thing for me is how different the game is to the others - I've only played around an hour but unless it picks up dramatically then the gameplay is absolute dog-turd in comparison, VERY console-like, and puts me off even bothering to load it and continue playing.
More, in this case, definitely isn't better.

It was £2 cheaper last week as seen here:
http://www.hotukdeals.com/deals/batman-arkham-knight-premium-edition-pc-5-fb-code-cdkeys-4-74-2603049
I know no-one has a time machine etc, but it will probably drop sub £5 again and also I don't recall it coming with the previous games either (I know CDKeys state that it does, but they didn't before.)