Bitcoin as we know it is supposed to be utilized like money for everyday transactions but aside from this, just like the physical gold, it is mostly known as a store of value that can increase and decrease suddenly in a matter of some blinks of the eyes (well, literally and figuratively). Now, that bitcoin is on the rise, so does speculations though I see nothing wrong with this but the problem can be the imbalance.
I have a small business running where I sell virtual goods in exchange for money. Although the goods are low priced with a price range from 4.99$ to 29.99$ (the average amount of purchase is 9.99$), around 20% of my customers choose to pay with cryptocurrencies. This is surprising to me as credit card fees are much lower for such microtransactions.
However, it shows me that many people actually believe in the idea of a decentralized cash system and do not just use Bitcoin as a store of value.
In my opinion people who only use Bitcoin to speculate did not understand Satoshi's vision as a peer-to-peer cash-system. You can see this as a byproduct in any currency however. Just have to look at traditional currencies, where forex trading is a thing as well.