The standard price for HD premium edition is 60$, but Turbine were doing a special discount for Christmas which reduced the price to 30$. Though the sale ended some days ago (on December 29?), obsviously they forgot to update their Market offer back to the original price.
I reckon between the various season festivities and many Turbine employees taking some days off, this simply slipped past the marketing people. Hopefully they'll correct this little pmishap sooner rather than later.
German, female, migrated from CodeMasters in 2011, Premium member, slow-leveller, pure PvEer and opposed to Forced Emotes - wherever I fit into the statistic, it's not in its middle.