I began as a clothing and Barbie doll seller on Amazon, then changed over to eBay
because it worked better for my business plan. Everything changes in business all the time. Market trends, items sourced, platform changes, etc. — the list goes on and on. All of these changes happen many different ways quickly. Some you may see slow changes over time. The math tells you what is actually real!
Listen to others for good advice but the math results are the true story of what works. I was once told not to list so many different kinds of items but to focus on one niche. This failed to work for me. Several items of all different kinds were tested and the math said it was best for me to use my large social media sites and a funnel. I concluded a large high volume appeal would work best. My conclusion was correct however it is costly to maintain a “Walmart" type store. That said it, niche stores are best for most sellers. My store is designed differently and uniquely. My marketing plan is key.