nah there's more differences, they even got different national sport teams (rugby, football), different leagues, even different flags.

As for drugs, i dont tell you to trust me, this is just my perception about drugs diffusion, that came from what i read from papers/internet, listen from other ppl, see directly.

I dont know anybody using meth, i know bunch of ppl using cocaine, i read every day about busts for cocaine and extasy, never seen anything about meth or crack.
Heroin use is going down too.

I dont mention hashish and marijuana because it's another story.