In 2 days its down $300 usd and you think its a good time to buy. So far the bottom/support has not been reached, so buying now would be a bad move.
No. Buying should be done in low quantities as that would leave you with enough fiat in case the price happens to go down even more. I couldn't resist buying and managed to grab myself a whole Bitcoin at $970 which I am very pleased with. It might fall down even more, but I don't believe it will fall down all the way to test the $900 level. If it goes there anyway, then I'll probably buy again.