So this is the interesting thing (apologies for being late), I see my Xbox seems to be learning and offering me discounted DLC for games I actually was interested in and enjoyed. Having beaten Crackdown -and still working on the badges- I find that I want to go back to some of my older titles and check them out every now and then.
I'd totally forgotten there was 2 memory sessions added on to Assassins Creed 2.
The good part is, they weren't crucial to anything the game offered, and the even better part is that they extend your gameplay with just under 4 gigs of for only about 480 Microsoft points.
Not too shabby!