It's all personal preference so what I like (or not) doesn't need to mean anything for you. To comment on a couple...
1. The Shadow.
I just don't get this game or what the fuss is, so it's not for me. I've had a couple opportunities to get one (as recently as last year). Last year I thought "Oh, I'll just buy and... I must have been wrong w/my previous thoughts." Well... Nope. Got to play it again and decided to not get it. It's just not for me at all.
2. Doctor Who
I tend to keep games for a LONG time. After getting Doctor Who, it was gone within 4 months. I enjoy a game or two on it but it's not a game for my ownership.
3. Judge Dredd
I've owned Judge Dreed for about 5 years now. I like it, but it's not the right game for a smaller collection
4. Terminator 2
T2 is a great flowing game with real Arnold callouts (sadly missing in most modern games).
5. Data East Jurassic Park
JP is also a great game. Get's a lot of play.