Sense

A man started  a zoo and made the entrance fee $100 but no one went there. He reduced it to $50 but still no one come.
He then reduced the fee to $10 but still people didn't come.
Finally, he made it FREE entrance and soon, the zoo was filled with people. Then he quietly locked the gate of the zoo, set the lions free and made the exit fee $500 and everyone paid!
As you go about in life, beware of cheap or free offers, they can be terrible.
No business is free, my friends!

Even in crypto you spend your data, time e. t. c