Limewire was this way to some degree. The source was free if you were willing to check it out from CVS, or you could download a binary from Limewire.com which

Limewire was this way to some degree. The source was free if you were willing to check it out from CVS, or you could download a binary from Limewire.com which strongly encouraged you to pay for "Pro". This produced tons of scam sites that at best just compiled the binary themselves then took people's money, and at worst just bundled malware. It also produced Frostwire, which I think was a net positive, but was really just a re-branding. Limewire's open source community never materialized, and they got the worst of both worlds.