I don't have a particular pattern for buying Bitcoin. I buy whenever I have money. I hold them for long term but I also have a little Bitcoin for short term trading.this is only the things i know to gain some profit..
yes that is a fact i am also doing so i have some long term investment and some short time investment, in present time i am welling to buy bitcoin for long term investment, to me the price is really very attractive and its good time to buy bitcoin because the present downfall of bitcoin is just for the time being and the price will increase again very shortly, therefore i think it is good do to buying in present time.
I think this is still not the best time to buy bitcoins right now because the price right now still acting to go fall so better to wait more days or weeks if the price is low buy right away before the price is starting to rise again.