Basically, the platters were an evolutionary process, and that is how they came about. First it was plain acrylic, then the lead-loaded acrylic made some improvement, so that was made available. Then the wood platters were tried, and they seem to be the most well-received now.
All the other platters are still available at different budget ranges. Now there is even wood with brass at the base of the platter, on the new flagship Teres 360.
It is still all about getting the best you can afford. Even the basic acrylic platter still sounds real good on the Teres turntables. If you can afford the top line models, that's even better.