Quote:
Originally Posted by robz
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It is clear that aperature is superior and that the B.S. spread on the central obstruction is not the'' image/contrast killer'' it's made out to be 
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Apples and Oranges using astrophoto as a proxy for visual evaluation...
Astrophotography benefits over visual in that you can stack, add/delete images to build a better one over time. Your eyeball can;t do that.
I'm not saying that an SCT is a bad type of scopes, they have some advantages in size relative to portability but from my own experiences I'd not list contrast as an advantage of the SCT design.
Anyway, enjoy your choice!