Early on I used to get it from a couple people at arounf 5-6 dollars. I went to a smaller university in a small region in the midwest so supply was decent but getting a contact was hard. Most people who had it sold to their clique of friends. Fast forward a couple years adderall was so mainstream and small town cops are board so they start raiding deals like SWAT style. So it got really risky to sell outside people you knew very well. Alot of people went down for it and from there prices exploaded, but people including myself paid the prices. It took about two years of under the radar dealing and fresh rounds of students to come to town that prices started dropping but I havent heard of it ever being lower than 15 for a full power 30 XR. The good days died and getting adderall became as hard to find as hard street drugs and as dangerous concerning the law.