I think CGI is more more noticable if it's done badly, i.e. on the cheap. Then it can really ruin the film. I was suprised at how bad some of the effects in the first Spider-Man film were, though you can kinda forgive it as it's 'comic book'.
Some movies (original star wars, 2001 etc) had excellent models and lighting, which I think still look better than a lot of the CGI done today.

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys