I won't even disagree that bitcoin is mostly used for speculation, because it's a pretty safe assumption. But even so, let's not pretend that it's not being used as a currency and as a store of value. Are we going to totally ignore it's important uses just because a lot of people use it for speculation?
As for the typical I've-seen-this-a-million-times bubble question, sure. It has bursted a couple of times in the past already. But every single time, the price floor has been higher.
No matter what other people say, I researched about bitcoin and I'm using it on how it is being utilized properly.
I'm benefiting bitcoin for so many years and it really a good thing for me.
I'm using it as an investment tool, and safe haven for my assets and we really have different preferences or strategies on how we will make a certain coin profitable for us.