Also, what 'Lavatube' are you talking here? The original Volcano Lavatubes, or the various rebranded versions (Lambo, L-Rider, etc). If the rebranded versions/version 1 of the Volcano; without a doubt go with the Vamo. Much better circuitry, better functionality. If its the Lavatube V2 vs the Vamo -- thats a bit tougher... largely comes down to aesthetics.