Nevertheless, let's lay them all out to make sure we're on the same page. You'll need, at a minimum: Commercial washers ($700 - $25,000 each) Commercial dryers ($1,000 - $20,000 each) A payment system Coin-based ($100 - $200 per machine, $700-$1,200 per bill-to-coin changer) Card-reader system ($40,000 - $80,000)