I have had all games since their original launch dates, but I'm tempted to pick them up again in that nice packaging for the trilogy release. If they had a different/new set of achievements much like Batman AA and Batman AA GOTY, I would be all over that: another reason to play through the trilogy fresh.
I probably won't pick them up again, but it looks good. I really wish it had all the DLC for 1 and 2 (understandably why it doesn't have the DLC for 3), but what can you do. At least 2 might have the Cerberus Network codes?
I'm hoping that "N7 Day" is also the release of the ME3 Omega DLC.
Batman AA and it's GOTY had different achievements because they had different engines (the GOTY suddenly supporting 3D). I have a magical SSS-Rank in Batman Arkham Asylum.