Black 2 and White 2 Pre-Order

So I'm considering pre-ordering the US Black 2 from PlayAsia at some point, seeing as it's only $61.10 NZD from there, as opposed to $90 or something when New Zealand stocks it, and I'd presume it'd arrive earlier. That's all very tempting, but the game may have DSi region locking. Meaning I won't be able to play it on my DSi.
Not sure if it'd be worth the risk. I could still play on my old DS, it just won't have DSi-specific features.
Any thoughts?

Well, PlayAsia quite often disable the area code but the games are only ROMs which are then flash-drived onto an empty cartridge. Illegal, in other-words. Buying from them would cause you to experience EXP glitches, alongside a few other well-known bugs, and the only way to fix them is by using AR codes which can only be done with even more modifications.

The point I'm trying to get at here is that you really should just wait for the official release of the games.

That's excellent advice, much appreciated.
I shall have to content myself with things like Silent Hill HD, Devil May Cry 5 and Thief 4.