My guess is that best time to buy would be about July when it went to ico price.

No, I don't think it's far too late that you should buy bitcoin. It's never too late to test something. If you're willing to learn and produce I suggest that you simply do a research. Monitor the chart making a assessment. Read the trend on when to purchase btc and do not be impulsive. There are things to consider when you buy bitcoin. Of course the first thing that you have to think of is the current worth. You should buy once the value is gloomier because if you purchase once the value reaches peak you'll eventually convey more losses than earnings.