Dropped in price for the Luke version from £37.99 to £32.99. I think they have been under £30 before but not recently. Just bought the Vader one myself, maybe should get this one too!
From all reports these are the best lightsabers generally available, the reviews on Play are very positive. Apparently these used to be £100+ when first on sale.
Might be able to use the 5% RAC voucher too.