I notice some of my LJ friends moving over to Dreamwidth, which is based on LJ code and can import your LJ content, but isn't owned by the Russians and isn't being staffed down (I hear LJ's staff is now 8 people, total).
My experience in the music business -- with both record labels and sequencing software -- is that chopping and changing gets you too wrapped up in meta issues when you should be concentrating on composition, continuity and content. Capitalism is really lousy at sustaining content platforms, though. They shoot up, they shoot back down. They rise, they fall, they disappear. They make a profit, they make a loss. What they don't do so well is work, and serve, and endure.