Quoted from TKDalumni:Look I have both and enjoy them a lot..play them back to back and I wouldn't call them "completely different." I feel is a fair comparison.
Pins don't have to be similar to compare them. Even though the layouts are similar, everything else feels different to me. Like you, I enjoy both. AFM is the total package with B/W fun factor. MET is more of a Stern ball buster...I've completed AFM, and don't expect to complete MET any time soon I think a larger collection can easily accommodate both. In a smaller collection (<6), I'd probably decide to sell one.