I would imagine if you were to list it on eBay right now it could pull in as little as $175 or as much as $250 or possibly more in VG condition with OHSC. Good pics would also make a difference.
In a music store it would probably not fare quite as well as there are too many pretty Korean disposable guitars on the wall there in the same price range (unless of course someone familiar with the Japanese Vantage guitars came in with the $$ that isn't taken in by pretty flame/quilt over lousy tone wood
).