What is your purpose to buy bitcoin ?, do not you need money at all. If you do not want to sell your bitcoin, try to use the bitcoin for transaction purposes such as purchasing goods and so on, because it can increase the price of bitcoin.
Its good purpose if we can use bitcoin to buy some goods but the problem is coming before that.
After sometime, i hope we can use bitcoin as payment every where, not only online but offline too since we are impossible to make all the transaction online. We need to transact bitcoin offline too.