I have been using Zwift for a while now and have only ever used workout mode. I use an Elite Chrono turbo and Wahoo speed/cadence sensor and Wahoo Tickr HR monitor.
What would the benefit be of a smart trainer because all I do now is change gear and keep the cadence the same to match the wattage the workout says I should be at. I can understand the benefit if I was just riding around because the smart trainer raises or lowers the resistance to simulate hills (the way I understand it)
I am really getting into Zwift over the winter especially now the ios version is out and I am wondering if its worth spending more money and getting a smart trainer.