The Romas were pretty common, up to 6. 7's, 8's, 9's are in the Blue Book, but I've never seen one. Chadick recently had a Roma 6 28ga, cased, close to 100%, for a little under $3K. I thought that a darned good price. Someone else did too, because when I called it had been sold. The Blue Book indicates about a 50% premium for a Roma 8 over a Roma 6. That'd put you at $4500 or so. In excellent condition, I'd probably be interested at something under $4K.