Why you should ask this question? 
When we invest in Bitcoin, it means we no doubt with Bitcoin. We even trust on Bitcoin for our future. Investing in Bitcoin for a long term, means we 100% believe in the future of Bitcoin. We won't put our money for many years if we don't trust in Bitcoin.

Anyway, before you ask others, can you answer how much you believe in Bitcoin?

Of course, there should be people who bought Bitcoin at $60k. I still remember when BTC was around $60k, people believe it will be $100k. At that time, people may have no doubt to buy Bitcoin at $60k. But sadly, it stopped in $69k (latest ATH). So, people who bought at $60k probably still keep their Bitcoin and wait for the next ATH.

As long as those people didn't sell their Bitcoin and keep it on the wallets, their money isn't 0. You must know that Bitcoin price never dropped to 0 value. So, how can their money to be 0?

Do you mean the price looks stable around $20k-$30k?
It is because we are still in the bearish season and there are many FUDs lately. But if you understand the havling schedule and bullrun season, you must be aware that we are heading those green market period. So, the price of Bitcoin seems to increase, it probably won't be stucked anymore.