From the announcement:
Kerr and King have today announced their first price rise in years. With the ever increasing costs of material, packaging and shipping the guys at K&K have no option but to increase their long stable pricing.
However it's not all bad news, they are at least giving folks several weeks to get their orders in before the inevitable price increase. The new pricing structure will not be implemented until March 13th, the day after Salute giving both online customers and Salute attendees every chance to take advantage of the old prices.