That strategy requires you to have good timing on the market. But the problem is, by doing so, it will make you emotional and you will be prone to make mistakes making you lose some of your money.
If you want the best strategy for ordinary investors like us, "buy the dips". If you have a job you should save 20% of your monthly salary and make that available to buy when Bitcoin's price is falling.
i agree with your opinion is great because i blileve bitcoin goes uprise again after the dips. i think after the issue about bitcoin hard fork this coming november the price value of bitcoin pumping uprise and the return profit after you can buy the bitcoin at lower price you become happy holding bitcoin for long terms.