Do I need a repricing tool?

If you sell on shared listings — arbitrage, wholesale, reselling — a repricer is close to mandatory once you have more than a handful of SKUs, because the Buy Box moves faster than you can adjust prices by hand. Rules-based repricers are cheaper and predictable; algorithmic ones chase the Buy Box while protecting a floor. Private-label sellers who own their listing outright need one far less, since they are not competing on the same ASIN.