Is collecting Bitcoin worthy?

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The world of cryptocurrency is getting bigger and worthy day by day. The most used and accepted cryptocurrency is bitcoin. You all know that the Bitcoin value is around to 9000 $. And as per predictions its value will increase in the future. Do you guys think that collection bitcoin is worthy in future. Because in most of the countries bitcoin is not really used. Do you guys think that collection of bitcoin is a worthy for a long term investment in a future. Also share your ways of earning bitcoin.