Warcraft Gold Buying Trick

Now... this isn't a scam exactly, but it's something I noticed a few days ago.

Many of the sites sell gold to both Horde and Alliance faction and I know that some factions are more played than the other on some servers. On my server, Alliance probably outnumbers Horde 2:1.

Now you're probably wondering where I'm going with this. Simple.

On the website you're actually going to buy gold from, check both factions. On my server, most websites are selling 500 gold for about $59 on the alliance side which is what I play. Out of curiosity, I check to see how much the Horde was paying and found out it was a measly $42!

I immediately made a Horde character, got someone to escort me to Ratchet and then took the boat to Booty Bay where I stayed. Ordered some Horde gold and waited. Once I got the gold, I put some crap items in the neutral AH up for 100g each on my Alliance char and switched to the Horde char, bought the items (Who's gonna buy a stack of strange dust for 100g?) and BANG! I got alliance gold far cheaper than I would have if I actually bought alliance gold.

Now, I did lose a little bit because of AH deductions, but it wasn't enough to make me never do this again.

[EDIT]
As I forgot to mention this, you'll need two accounts. Most people don't really have a problem with this as they can always ask a friend to put a crap item up and then they trade the gold to your main or mail it.