@halcyon. Erm, why would an Android device cost more than a Tizen device? There are plenty of low-to-mid-range Android devices out there - plenty!
If anything Android devices might be cheaper as the manufacturer can expect to shift more than an untested OS. If two phones came out with the same spec one on Tizen and one with Android at about the same price, I'm going with the Android. That's not to say when Tizen get's established and starts gaining a decent reputation - I won't consider it, but not until then.