If bitcoin was to skyrocket again, no one knows what percentage increase we would have. Not to mention bitcoin isn't guaranteed to skyrocket in the first place. Not because it happened in the past, while definitely not impossible, it doesn't automatically mean that it will happen again. Who knows? We might have a very slow increase for a decade this time, or even a decade of price stagnation?
That is the problem of many bitcoin users. They always think of bitcoins going to the moon and skyrocketing without thinking that bitcoins is basically meant for peer to peer transfer and not as investment vehicle to give much profit.
Yeap pretty much. Don't get me wrong, there's nothing wrong in investing or speculating on an asset that you actually think will go up in price in the long term, especially if you're actually confident on the future success of bitcoin. The problem here is some people are investing in bitcoin just because it's hot, and they're expecting it to rise quick. But anyway, it's them that's going to likely end up losing money in the end anyway, if they're really that impatient.