A used wheel in good condition can be found if you get lucky I suppose.
When the TM, T-500 first came out I bought two of them. They were $600 CAD and for a mid level wheel they worked great. I used the first one hard for three years and then pulled out the second one. I gave my older one to my son who is 27 now. The second wheel I used for about 8 years or so and while it still works it has issues.
I wouldn't sell it because it was too worn out, so I donated it to a new sim racer and he is still using it. I purchased a Accuforce ver II direct drive and it probably be a mid range DD wheel. The price was great at $1000, a high end DD wheel can go for triple that.
My advice, save your money and get the best wheel you can afford, like any mid price ThrustMaster. I had 5 or 6 wheels at one time, from bad to worse. The T-500 was a decent wheel, I also had A Logitech G27, G29, two different Fanatec which I would not recommend. Keep in mind, all wheels wear out, the cheap ones wear out faster.