Eh, I've done a few and they've been mostly okay. One was for a guy doing time perception (he had a miniseries on PBS about the brain a few years back). I sat in a tiny, dark room staring at a computer screen doing countdowns over and over. My task was to say which one was faster. I got a case of chicken wings and handle of rum with that.
Done a few allergy medication trials. One was awful and required tons of pill swallowing and checking in every few hours with a cellular Palm pilot. The other one I just used a nasal spray once a day. Got 2 HDTVs and a JTAGed Xbox 360 with that money.
Earlier this year, I was strapped into a chair, had a mask molded to my face, no lights, white noise in the ears, and a platform would move in one direction while the image on the screen in front of me moved another. My task was to use a joystick to move to where I thought a circle had flashed on the screen. 5 hours! That was honestly one of the most traumatic experiences of my life. They came back and asked if I was interested in doing more sessions! Only time in my life I've walked away from "free" money.
Anyway, the $100 I made from that funded booze and chicken wings at ZapCon.
So, I hope it was worth it, Mike.... and Ond... and TacoTownCharlie....and Arroyo... and Opt2Not.... and Nephasth... and all you other ---daisies--- that ate 10lbs of my chicken wings.
Did a chikungunya vaccine trial that bought my plane ticket to Zapcon...
Lately I've been doing a flu study. Seasonal shot plus an amplifier to see if it would be more effective. $600, so that's been nice.