There will be some extra money 
if you buy bitcoin and leave it to your favorite exchange then you'll get the same amount of bitcoin you invest. Bitcoin will remain the same and it will spike up for sure.
Holding is always good and it is always profitable if it is done for long term and most of investor are doing so buying at cheaper rates and holding till the desire prices to knock at door to collect as much profit, bitcoin will remain profitable whatever time become and it will keep giving people its blessing and it will always be in the throne of digital currency. if you buy bitcoin and leave it to your favorite exchange then you'll get the same amount of bitcoin you invest. Bitcoin will remain the same and it will spike up for sure.