every time I would buy bitcoin. but when bitcoin has a low price I would buy bitcoin more than usual. buy bitcoin is the right decision for the bitcoin I can do anytime and anywhere.
I bought last week when price was around $420 and it has already gone above $450 so I think that was the good decision taken at the right time, will sell when it reaches to $500 not before that.
You are lucky to get a good profit as well you have made the right decision at the right time. Even if you sell too an enormous amount is got as an profit.