Thanks for the responses guys. It was very helpful to appreciate what I need to get going. Its a bit overwhelming just going to their website.
It does seem all these trainers are smart these days, with Bluetooth, sensors, etc. Hence, you need nothing but a bike and an ipad or pc. I am thrilled.
I've pulled the trigger on the Kickr just now. I went to the website and the Cyber Monday sale was too much to pass up. There's probably 15 minutes left on that.
On that topic - I'm not a shill for Wahoo Kickr. Case in point I was reading reviews today on DCRainmaker
here and there are many trainers he seems to support more, are quieter, etc. But it took me so long to figure out Wahoo that I dare not research more.
Now I just need to get a mat, fans, heart rate sensor, sign up for zwift (or other app I am not a shill for) and I think I'm good.