Hi. Sounds pretty expensive to me. We've had G670s on our last two Class'A' MoHO. I never liked em. Always had a 'Rumble' feel as if out of balance and a high pitched whine above 60 mph. A year ago I had two of em go bad( not at the same time)with only about 12000 miles on em. One showed a 'Worm' under the rubber on the sidewall & the other blew a big hole out of the sidewall. I replaced all of em with Goodyear G647 RSS at $425 each mounted/Balanced and they were load range G. These are considered Truck tires, but I like the ride & Stronger sidewall and they don't have that annoying high Pitch noise whine.