Is it still worth investing in bitcoin with only $600? Could it be profitable in 2020?
I invest in blockchain business and I think it is still quite profitable business today. But it's always better to apply to professionals to reduce the risks. Personally I found useful ad marketplace here https://bitmedia.io/bitcoin-advertising/ to advertise my bitcoin business and attract target audience. They helped me a lot. Hope I will boost my bitcoin business in the short period of time.