The primary reason they have as many customers as they do is because of marketing, but the reason they're successful is that many of those customers really like

The primary reason they have as many customers as they do is because of marketing, but the reason they're successful is that many of those customers really like their products. They know they aren't for everyone, they're just betting that there are enough people out there that like them to be very successful. So far, it seems they're right.