well its your choice , you can reinvest in your services to get more profit, you can go for mining, you can buy some altcoins or evn you can go for gambling on your own risk and you can have fun, buy some things you really like or keep in your wallet for the increment of the price:)
yeah you mentioned a lot of methods. I know all you can do if you have a lot of bitcoin investment or other growing methods. that you can use. everything is worth a try