[storax]

If I keep scratching my head I'll go bald, so I thought I'd ask:

For contractions, is it better to use the right single quote ― which looks great ― or the apostrophe ― which is semantically correct: can’t or can't?

I like the idea of using an apostrophe simply because that's what it is, but the curly quote does look better and e-readers are visual devices. Is there any reason to choose the semantic markup over the pretty? The curly quote seems to me a no-brainer, but good websites used to use tables for layout, too.

Do you think curly quotes might cause trouble down the road?