Looks like an error, in that they droped to the new price a week early then changed their minds.
Wish I had a screen grap to prove the new prices but they are as follows:
ALL PRICES ARE £ STERLING NOT EUROS
£149.99 (£159.99 rrp) Arcade/Core old rrp £189.99
£189.99 (£199.99 rrp) Premium old rrp £249.99
£249.99 (£259.99 rrp) Elite old rrp £299.99