Great way of putting it! I agree. I think I've kinda topped out the significant gains, and from here on out... I mean, like I said, the Denons sounded great, and so did the HD800s, but frankly for my listening habits I don't see a need to spring more unless I just have money coming out my ears.
My post was to hopefully let other M100 owners know where the product sits in terms of the overall spectrum and either ease some minds (if they're looking up the price chain) or pique curiosity.