Yes sean..low cost info products are a great way to test the demand for a topic..if it sells u know there are people who want tat..ask the people who purchased about how u can improve it more..use that feeback to create a full fledged course…include the initial buyers in your test group as you build your course..build with them.. add community factor to your course..so that ppl can find and interact with other ppl who want to learn the same thing…this is how high priced successful courses that sell for 6-7 figures/ year are built..people can pirate your product..but they cannot rip off the community you built around your product..ppl will always pay a premium for that