Even if those shirts are branded merchandise, they'll be selling for 2 Dong a pop... market prices and all that.
Must admit, I've been surprised by Utd's buying this summer. They'll either be unstoppable, or they'll have some trouble gelling together. Their football will be amazing, or they'll be a bunch of individuals rather than a team.
Either way... don't care too much. It's the Arsenal that I'm looking out for.