Is eBay best to auction an expensive book?

I've used eBay successfully in the past for both buying and selling,
but only for things reaching the $300 range.  I've never tried selling
an expensive item on eBay before.  I'm going to auction a couple books
as a set that should go for considerably higher.  $4000 would be a
minimum bid.

Is eBay still the place for something like that?  Would potential
buyers be scared off for using eBay for that?  I know people do sell
valuable items on eBay put since a lot of the value in a collectible
book is in the condition, wouldn't only being able to see pictures of
the book be a downer?

Are there conditions under which you're better off with an actual
physical auction?  That would likely limit the potential market for my
books since they are highly sought after but likely only in a very
limited market.

-David