Sure now is a very good time to buy, considering the market since the beginning of the year, the market has lost so much value and I think we might be at the bottom at the moment and bottom is a good place to buy altcoins because from there it will grow and make profit, though no one knows for sure, the best thing to do is to invest what you can afford to lose at the moment, don't invest all your money hoping the market will increase, it could still go side ways.