I didn't know about FfoL until today. I've bought DMD, and now FfoL online pdf download. The simplicity of FfoL is more appealing to me personally (a normal deck of cards can be used to play rather than the special deck of DMD). The availability of models for DMD is quite good in my area. I like simplicity for my games and the activation of models in FfoL is similar to the MERCS miniatures one which was a great solo experience for me. I like the idea of using FfoL rules with sci-fi style minis. Fills a good niche and is my type of complexity.