I believe in crypto because blockchain technology is the future in many different fields. Cryptocurrencies and tokens are just a side thing about this.
The whole market is still so you and if you imagine market cap will need to go 1000x bigger of a current one then you will realise the whole potential of a crypto market.
And each product has its own temporary borders. Cryptocurrency this roughly speaking technology and it may become obsolete. Of course there is potontsial. But with technology, nobody will need it. And the market will collapse in an hour.