e.g. Zenni has sold $7 glasses for like 20+ years. They appeared shortly after Luxotica started buying retailers. If there's a problem, it's that advertising re

e.g. Zenni has sold $7 glasses for like 20+ years. They appeared shortly after Luxotica started buying retailers. If there's a problem, it's that advertising reduces consumer information (basically economic jamming) and distorts markets.