Ebay a good source for arcade controls? They have a lot of cheap auctions there.
Yes! Ebay is a good source from controls as long as your willing to take a risk. The question should be:
"Am I willing to risk my money for arcade controls to save a few bucks?"
It really does comes down to a few bucks too. There are vendors here at the site who will sell you just about anything you need. When building an arcade, there are 2 areas you shouldn't scrimp and be a penny wise and a pound foolish.
1. The monitor - Since you spend most of your time staring at the monitor, you should make sure you aren't upset with it. Things like not having side art, or not having a coin door can be overlooked - but if the monitor is crap, you can't look the other way.
2. The controls - this is your only interface to your machine. If the controls aren't responsive or just don't work right, you'll know it. And regret it!
I spent quite a bit on my controls. Not because I bought expensive controls, but because I bought a couple sets of cheap controls trying to save a few bucks. Not to mention all the time I spent trying to rig things up.
I've had good luck with Divemaster, and others tell me Ponyboy is also good.