not sure what the going price is on those but they're a great sounding ABG and hard to find. Very deep body like a guitarron so it can be a little awkward to play. Very well built. I had a nice Ibanez ABG some time ago and it doesn't hold a candle to the Earthwood. I think back in the day Bonnie Raitt's bassist Freebo used one as did the guy for the Violent Femme's.
A friend of mine has one and uses it quite a bit to great effect. Use good contact pick ups under the bridge like K and K's, not the under the saddle quackers if you're going to amplify. Feedback can be a problem if you're not careful, like any acoustic guitar.