Yes I think so. As fast ethernet became more and more inexpensive many users (companies) changed to fast ethernet. The speed is much higher. I haven't seen a new Tokenring Installation since years.
Haven't seen token ring for ages(I do not even think these days token ring architecture existed ), fast ethernet is popular these days, which has been a boon to networking world, my query is when is the NEXT GENERATION Network card coming in the market which would dominate even the fast ethernet? I hope we would be able to design something else now .
I have a customer that was solid TR and is currently replacing it all with fast ethernet throughout, which is a large manufacturer on a campus-like site. I do still have one customer hanging in there with TR, though many new specialized systems are being installed as fast ethernet.