Haha, VT8man your commen is 100% right! The Shadow is a fab game and the one I would pick from the lot. Its rulesheet finds just the right balance between skilled and nivce play, the music is superb and the layout breathes flow. The only downside is its artwork, it's rather ugly for my taste.
But, I also own an Earthshaker which is great for its artwork, music and excellent gameplay. I do think that 1850 is steep for it.
I have not played BK2K often enough to have an opinion on it.
Pinball magic has many tricks up its sleeve and a big "wow" factor, but unfortunately the novelty wears of quickly. Recommended to own just to see how they did it.
No Good Gofers is a fun game but somehow I never really wanted to own one. But love to play it occasionally.