She clearly became big at a time where solid tit jobs weren't really more or less common and then got pimped out by Vivid for raking it in.

Just like with Jesse Jane and Digital Playground, there's not that much relation between looks and success, since she's probably one of the most-recognised names in porn and doesn't really look the part, had fucked up tits for a long while before getting them fixed and generally hopped around on video like a tweaking whore trying to mimic a hummingbird.

Bankable names in porn are milked until it's all an ugly mess, just like in the infamous mainstream they'll never be taken seriously in.
Nicolas Cage wouldn't make a big splash in porn either...