Have you tried the 2016 model Turbo S? If not, I'd suggest you give it a go and then decide if the value is there or not.
I've tried the Raleigh, Focus, and Kalkhoff bikes. In my opinion, they just aren't as seamless, powerful, stealthy, and well built as the Turbo S.
I'd really like to try that Optibike SIMBB 29R. But the only way to do that is a long trip to Boulder, CO.