Quoted from CaptainNeo:IM is not boring. If you are going by layout, MET is boring, since it's the same damn layout as 30+ other games.
This. I played a bunch of games on both at the AA show. Met is cool and fun but did not give me the wow factor in terms of shots like IMDN did. Also love the animations in IMDN (planes and missiles!) vs. the dots in MET.
However as CN says play 50 on each.