Yes. The longer you hold your bitcoins the better the outcome as the longer term has a brighter perspective. The price has increased now and it is going to go more. Many have already bought more bitcoins and holding it looking for a price hike. Too much investments now would pile up the wallets with good profits.
Many people say that bitcoin will increase a lot because of bitcoin and I believe it is so investing in it both for the long term as well as the fact that there may be other things that are halved in the next year and will be more than just more popular. I think it's a good thing to hold your bitcoin because bitcoin has a very good future.