sorry dude...but its for business
No, I do business, and I know people who do business. Charging people to play DC is not doing business, it's you being a worthless punk. Arcade games are so cheap, that if you actually plan on making any money it's COMPLETELY retarded to go the DC route.
The only way the DC taking quarters route would work is if you wheren't going to make much money AT ALL. In which case there's no point to shuck the few dollars out of ppl.
In short, you aren't doing business, you are just not thinking.
Charging people to play DC is a ghetto scam that won't save you ---steaming pile of meadow muffin---, it'll just keep you from making your proper dough, fool.