That's the pricing for the skyHawk (no redundant controllers or redundant power supply) not the skyEagle (fully redundant). So that $48K is with single points of failure and that also doesn't include the dedupe/compression license (22-33% of the cost of the unit for the license). However, yes, Pure charges $160K for 11TB raw. Granted that includes redundant hardware.
In my opinion both overcharge considering they both use consumer grade MLC.
Tegile costs less and they use all enterprise grade MLC and enterprise grade SAS (not SATA).
I know those Pure/Skyera systems cost NO WHERE near that kind of money to produce. They literally feel their "dedupe/compression" software is worth that much. The sad thing is their compression/dedupe ratios are no better than anyone elses.