I'm not sure that over ears are inherently better than in ears. Is there a $1,000 pair of over ears that are superior to the LZ Big Dipper? I've seen the KZ ZS6 for $20. If you spend 5 times as much is it likely you'll find over ears that are clearly better? My over ear Superlux 681's aren't significantly better sounding than a number of cheaper IEM's I own. The technology on over ears is pretty much what it was 10 years ago, while IEM's have a host of sonic innovations including multiple drivers and hybrids. Over ears are an audio dinosaur. Even if the SQ is equal IEM's are the easy winner in durability, portability, convenience and comfort.