If you have the funds, you might want to do it anyway.  I was thinking last week "aw, it's too late" but it wasn't.  Sure I didn't get it at the bottom price, but it's so low still... it might be low again next week, even if it goes up, there is so much volatility, you can probably buy at a low point.  But if you can't afford to have money tied up, don't do it.