I think like most things it's subjective and people will have different opinions why it is. For me it's simplistic but elegant design. Embossed and gloss finish. For a WWA release of a steelbook for that time (2011) equaled the quality of Blufans (minus slip and extra bits). IMHO it was only later when the 2015 official Blufans version came out, could beat this release! Can't imagine what that would go for now!!
£££$$$ I think there was a lot more prints of this version than the Blufans but given it was sold to a mainstream purchasing audience as supposed to the dedicated steelbook collectors, there's probably a LOT of opened (and hence rough) versions out there. So a sealed one is probably a lot more rare.
Most WWA releases are just lazy artwork now and stingy on the finishes due to cost of production I imagine.