Mark Kleinman, chief reporter of Marketing magazine, said: "This means all the existing merchandising that fans have bought becomes redundant and children will pester their parents to buy the stuff with the new logo. The logo change will add nothing to their plans for world domination but it will annoy their fans." It is likely to annoy some 350,000 supporters who own current versions of the Arsenal shirt, at a cost of around £40 each, which will soon be redundant.