http://www.gearslutz.com/board/electron ... -both.html
mini + micro does not equal a 2 vco synth because you can't detune them by more than a semitone or something like that.
there are arguments for getting both, but it makes more sense to me to use something that covers different ground.
fwiw, i'm planning to get the micro, mainly because:
1) it can sound like 2 oscs pitched a fifth apart
2) you can use CC values from a sequencer to change the hidden parameters (don't need a computer).
3) it has pitch modulation for making drums and basses with a hard attack
i'll miss the noise and extra lfo, but the 3 things above, plus its size, means micro beats mini for my needs.