Just when btc value is rising you suddenly said that it is game over. Some people just started investing I don't see why you will stop. Just because you cannot longer double your money in btc for a shorter time just like the old days doesn't mean it is not a good profit. Whether big or small as long as you gained you should be thankful enough for bitcoin. Anyway, if you really want to sell all your btc you may do so, that's for you to decide. There are people out there who are most willing to buy anyway.