I imagine that they'd wait for SATA Express drives to become more readily available and release an R9 drive based on it.Wonder if plans for an R9 range if copying graphic card model naming.
Both AMD and OCZ have press releases dated 19/08/2014 stating prices will start from $99 for the 120Gb version.
PCGameware.co.uk state price as from £59.99
AnandTech Portal from $99
Techpowerup $99
I'm not sure if all this means it will be available in the uk at that price as that isn't stated. But hope you can look at it in further detail. Can't link them as im on phone atm
Aren't those usually wholesale prices quoted?