Reminds me of people who don't like glass sandwhiched smartphones. I personally feel as luxury items, and in the category that a standalone DAC is. I won't be touching it that much where fingerprints would be showing. I like having a device look as good as this, even if it sacrifices itself to the amount of care required to keep it from looking dirty.
But I know what you mean though, my RME ADI 2 DAC+Amp has this issue somewhat, where the body is super smooth matte finish, while the front faceplate is a bit rougher and far less prone to smudges. But the Matrix is something I wouldn't be touching much really as a standalone DAC.
Idk if you ever used the THX 789, but it sounds like that would be your ideal material
Really nice surface finish, looks great, and won't pick up imprints at all really.