Your right, ( in gross sales) they do dominate a market without a single bit of competition.
Easy to place first when your the only one in the race.
However you totally missed the point of my posts.
Cheap prebuilt coils have a much higher fail rate regardless of where made. Insanely high compared to a hand built proper coil with genuine kanthal.
Pairing cheap premade coils with mechanicals is a bad idea, IMHO.
Just seems like common sense to anyone with any experience.
90% of my gear is made in China and near flawless, however none have or use prebuilt coils.