First of all, sales volume is only one of the criteria to be considered. After all, one person must be "the first person to eat crabs". (Of course, this description is not appropriate. Maybe the goods are very good. Don't hesitate because no one buys it, because it may just come out or the demand is not big, but it doesn't mean there is a problem with the quality. Nobody bought it. Who knows?
Secondly, we should be prepared for after-sales guarantee. If you have no confidence in the goods, you can choose to buy freight insurance when submitting the order. In this way, even if the goods are returned, the buyer does not need to pay the freight.
Finally, if you really want it and have the intention to buy it, the second one must be considered.