I've never been a fan of his music, but at that time he really seemed to be focused on ensuring that as many regular fans got to see his shows as possible.
He limited the price of his tickets to I believe $25. This was when he was at the peak of his fame so he easily could have gotten away with charging much more.
Secondly he would often book a massive amount of dates in each city but only announce one of them. The next show in the block of dates would go on sale after the previous one sold out. It didn't fully stop scalpers but the unpredictable nature of how many shows in total there would be and when they would be on sale cut down on a lot of the scalping.
Again, not a huge fan of his music, but he seemed genuinely interested in helping his fans get to his shows.