I owned a pair of W3000ANV about two years and highly regret selling them.
If you have a pair in pristine condition I would gladly pay $1,500. Alternatively, I would trade for a pair of T1s and a Bottlehead Crack, both in impeccable condition. The Crack is one month old and the T1s approx four months old with original packaging.
If you have a pair, but not in top condition I might still be interested, but would not offer as much.