Is there any benefit to pre-purchasing Heart of the Swarm?

Recently, I received an email from Blizzard offering me to pre-purchase Heart of the Swarm expansion to StarCraft 2: Wings of Liberty. Is there any benefit to pre-purchasing as opposed to buying it after it's released?


Solution 1:

I was wandering around Arqade Meta and found this:

This is currently the case for Starcraft 2 HOTS. Everybody can preorder on Amazon and get a free Beta key.