It seems to be going up and not coming back down again.
I don't think the word missed opportunities can be used to Cryptocurrency, you will always have an opportunity some other times because the market is going up and down and a new project is coming up and being launch, it's just you have to look further if the opportunity being presented is a really good opportunity.
Really great opportunities have already been missed, still, even with my faith in the crypto currency, it's hard to imagine ATH, and without this it is clearly not possible to earn as well as in 2017
I believe if that will be back again in the future and we have a lot of chance to buy more and more crypto at this price when it was so cheap. I will try to pick more and more altcoin to prepare if the bullish trend like 2017 will come again.