EDIT: It seems this was an April Fool’s Joke. That a couple I’ve been taken in way, way, way after the 1st April. The clue was towards the bottom which I skim-read: demand and supply curves being the opposite of what we know they must be. Dammit!

I hate the £1.99/£3.99 style of prices. Pleased to read at the blog lined above then that:

Prices ending in .99 no longer have any advantage in consumer value perception, and do not lead to higher sales.

In fact, the new advice for the US is to charge $0.01 over the dollar and in the UK to charge £0.04 over the pound value. It increases sales volume, revenue and trust in the seller.