Everytime I see one, which is unfortunately quite rare. We still have a small one in our mall, which used to be an Aladdin's Castle, but got replaced by the...Family..Fun Zone. Stupid ass name, but it uses all the exact same machines that came with the place. I guess it was to appeal to families more? I don't know. It's rarely used. I see people all the time say "I can get a better experience at home", but that's stupid. You may get a more relaxed experience at home, but it's nowhere near the same thing. A good arcade is filled with people who have the same passion as you do, video games. There's the opportunity of high scores, and there's no amount of home motion sensors that can match the accuracy of a good light gun game.
Unless you spend hundreds, sometimes thousands of dollars, you won't get the same experience of driving games that have the bass and rumble, force feedback, and sometimes multiple screens.
As cheap as the stuff is, earning those tickets and trading in for that cheap prize is a memory of hopefully having a good time, knowing you earned it.
Unfortunately, no one cares anymore. They're all lazy or just don't make time (sometimes they just can't). It upsets me greatly to see even good arcades just go. Consoles were at one point the greatest competition, and their goal to surpass arcades has succeeded. Everyone says they're too expensive, that it takes dollars just to get anywhere. Well sure, if you're bad at it. The point is to see how far you can make your dollar go. If you get better, you won't need to pay for extra lives or plays. I've gotten through over half of Time Crisis 3 on two plays.