When I was 15 I made a scriptable screen automation tool. I gave it away for free on one of the forums I frequented, and people actually downloaded it. I was am

When I was 15 I made a scriptable screen automation tool. I gave it away for free on one of the forums I frequented, and people actually downloaded it. I was amazed. A couple days later a guy contacts me and asks me how much I'd charge to add a feature. At that point I was just thankful that anyone was actually using this thing I had made, but I couldn't pass up the chance to become a "professional" and make my very first sell, so I told him $60. I've always been nervous about disappointing people, and I was extremely worried he'd scuff at my offer and maybe even stop using my program. Instead he was very kind and offered to pay up front. I made the feature and sent it to him. A couple of days passed, and he messaged me again to tell me that he just wired me another $60 and that he didn't want anything for them. He just figured my price was too low, and that I really deserved more. That was a wonderful experience in how product can be worth so much more to the person receiving it than the one creating it. For me it was just a fun little project for a weekend, but for him it was genuinely useful and something he could not have created himself. It's also a fun thing to be able to say. I once under priced a product so heavily the buyer took pity on me and offered more.