True indeed. I was happy with selling $200 per BTC and was a thought that I have made a huge. But later, I realized it was one of my biggest mistake. Same, a lot of people from 2011 or so has sold their BTC and now crying. It will be the same for the next 10 years as well.
I also buy some
BTC in 2015, and sold them for profit of only $50 or something like that - then it seemed quite normal thing, but of course I failed to see the big picture and understand the potential of
BTC. But today people can look in past and learn from our
bad moves, although we cannot be sure what will be in 5 or 10 years, price of 1
BTC should be at least 10 times bigger than today. Of course inflation should be taken into account, and fact that $100k today and in 10 years will not be same - life is likely to be much more expensive than it is today.
I would say that it is not bad to pay with
BTC when you can do that, or convert some to fiat from time to time, but it is also smart to hold some coins for long-term. I think that in next 10 years we will be able to pay with
BTC almost everywhere, without high fees or waiting for confirmations, Lightning Network will be something fully implemented and easy to use.