Long term appearance of lighter colored tops- Opinions?

[Wret]

I'll need to decide on a new top for my seal grey boxster soon. It came with a grey top which I like, but it seems it's always dirty. Keeping it clean requires intense scrubbing, then waterproofing. My prior car was also a convertible with a tan top on a black car. I really liked the color contrast but it seems to me that lighter colored tops show more stainsand wear over time than black tops. Anyone have experience with both light and dark colored tops? Is black easier to maintain?