This question depends all about the person you are are you a person who are good in saving money you should go further and save your money you know you can always
invest your saved money later. But when you already got enough money and dont want to save invest money you will only get more.!
I guess if you want to increase the number of bitcoin you have, maybe you'd better start to invest all bitcoin that you have today. but there is news that bitcoin prices will soon rise, if you do not want to sell your bitcoin in the near future, I think the investment is a good choice