Right, in this specific case the problem is that "burr coffee grinder" became widely known as an indicator of quality, which meant that cheap products prolifera

Right, in this specific case the problem is that "burr coffee grinder" became widely known as an indicator of quality, which meant that cheap products proliferated to take advantage of the prestige. The high-quality products that earned that reputation still exist, you just have to find (and pay for) them.