This guide looks past the headline bonus to the terms that shape its value:...

https://echo-wiki.win/index.php/Why_Do_Some_No_Deposit_Bonuses_Only_Give_$20_to_$150%3F

This guide looks past the headline bonus to the terms that shape its value: 25x-60x wagering, $50-$200 cashout caps, and restrictions to non-progressive slots. It also explains why a deadline of a few days can make an offer hard to use.