^ You have already answered your question, you invested in BTC because you believed in it and your purpose is to hoard because you know that the value of BTC will always fluctuate that you can make money while hoarding and you are right. People have different choices in the first place, you can hoard and store value and you can purchase products from online merchants using BTC. But most people believe that hoarding is the best option to gain profit, it is very easy to gain profit in that way because they saw that the demand and supply really work in BTC and time will come when everybody is hoarding, BTC will become more expensive and that become a more valuable asset.