It's impossible for us to immediately believe in bitcoin when we just got to know it, right?
The motivation you say from speculation that others say makes us more excited. And we can also see how many people end up having to panic because of spculation that says bitcoin is smething bad and has no future or that says bitcoin is a scam. It proves that this does affect bitcoin holders, especially those who are new to bitcoin.
People who are new to Bitcoin can easily be vulnerable or influence by speculation or bad news against Bitcoin, let's take for instance a beginner who has less knowledge about Bitcoin and just started accumulating some good amount of Bitcoin for holding and perhaps he heard people saying all kinds of awful things about Bitcoin that the price is crashing or Bitcoin price will not do well in the future, you will see that after the beginners had listing to those negative speculation his mindset and emotions or passion he has for Bitcoin will be seriously affected were as he start panicking and sell off his accumulated Bitcoin, so perhaps we should focus on positivity and shouldn't allow speculation influence our perception on accumulating Bitcoin.
I have been a victim of this in my early days in Bitcoin. It was really tough overcoming the discouragement and negativity from friends and colleagues. Some even told me that the money I was putting in Bitcoin would have been useful for buying shares then. They were actually buying shares then but today those shares are worthless.
The worst one was when I saw a CNN supposed analyst on suit calling Bitcoin outright bubble. Frankly, I was worried at first but found way to calm myself down after all I have always been a risk taker with inspiration drawn from a statement I saw in a movie "no risk, no reward".
I'm happy I did not give up and to know that they are wrong. While some of those sceptics I called friend are already deep in Bitcoin, having firm grip of their portfolios, some of them that are adamant are still waiting for us to cry when Bitcoin supposedly fail. THEY WILL WAIT TILL INFINITY!