I disagree... I think his portrayal of Raylan is as nuanced, layered and complex as just about any character in TV, bar none. And maybe like Basketball Fan mentioned, his lack of a notable movie career is more his doing than his lack of ability to land quality roles... but I'm a little bummed that we didn't at least get a couple of disposable beat-em-ups from him last decade.
About five years ago, my brother and I started an extremely detailed pitch for a new Batman movie trilogy based on the Knightfall storyline, and we used Olyphant as our template for a late-30s Batman. I'm really happy with Affleck (though the movie was extremely lackluster) so now I guess my daydreams will have to be Olyphant as Harvey Dent.