Sales numbers are more like approval voting, because you can buy more than one thing in the same category, but you can't vote for two people for president. Say

Sales numbers are more like approval voting, because you can buy more than one thing in the same category, but you can't vote for two people for president. Say I'm a photographer, but due to Alt-Amazon's draconian policies, I can choose one and only one camera. And not only that, I can purchase one and only one lens! What do I pick? Compact or fullblown setup? That's FPTP. But most photographers have at least a couple options to shoot with, depending on the needs of the situation. And the star rating system is classic score voting.