Did a little research on this one a while back, and found the Bridgestone Ecopia 195/80/16 here for $125 a piece (!)
http://www.onlinetires.com/user/vehi...allbrands.html
However, as stated earlier, this are for "electric vehicles only" -- I change my own tires with a manual tire changer, so . . .
They also have the Yokohamas at $168
The Bridgestones are apparently very slightly smaller in diameter than 600:16. A tenth of an inch or so, I believe it was. Like the bias ply looks, but for the price, I'm taking a hard look at these.