I'm getting started with ecommerce and been seeing a lot of experienced entrepreneurs suggesting google trends as a tool to estimate demand for a product.
I'm skeptical by nature so maybe some of you can help me out, how reliable is google trends at estimating demand for a product? I think it's fair to assume search volume might express interest, but that interest doesn't have to correlate to actual demand. A product with much a smaller search volume might actually have a much larger purchase rate. Or maybe I should instead be focusing on changes in search volume to pick products for which interest is increasing, so possibly demand too?