The Temptation to Sell Everything
New Amazon sellers often cast the widest possible net — buying anything that seems profitable regardless of category. While this approach has learning value in the early months, it becomes inefficient as your business matures. Specialist knowledge in a few categories almost always outperforms generalist scanning across hundreds.
What Makes a Good Niche
A good niche has consistent demand, manageable competition, sufficient product variety to build a range, margins that justify your effort, and ideally some barrier to entry. Categories you already have knowledge about or genuine interest in make better niches because your existing expertise gives you an analytical edge.
How Niche Knowledge Creates Advantage
When you specialise, you develop instincts that generalists lack. You recognise good deals instantly because you know typical pricing. You spot trending products early because you understand the market dynamics. You build relationships with specialist suppliers. This accumulated expertise compounds into a significant competitive moat.
Choosing Your Niche
Start by reviewing your sales data. Which categories have given you the best results? Where do you enjoy sourcing most? Your niche often reveals itself through your own track record rather than through abstract market research.
Going Deep Not Wide
Within your niche, build comprehensive knowledge. Know every major brand, understand the competitive landscape, track seasonal patterns, and learn which suppliers are reliable. Deep knowledge is your sustainable competitive advantage.
When to Expand
Expand only when your current niche is well served — stable supply chains, optimised listings, consistent profitability. Then expand into an adjacent niche where your existing knowledge partially transfers.
Sticking With It Through Rough Patches
Every niche has difficult periods — seasonal lows, new competitors, regulatory changes. The temptation is to abandon your niche for something that looks easier. Resist this. Your accumulated niche expertise is a valuable asset that takes months or years to rebuild in a new category. Persistence in a well-chosen niche is rewarded more often than constant category switching.