>>535226962
>I genuinely don't see the appeal
I like knights, that's the appeal, the knightier it gets the more I like it. Custodes are at the top in knightlyness, melee focused, heavy knight like armor, lances on bikes, their dreads are like grabbing a tank and then fucking with it until it turns into a knight. Big sword, big shield, big knight.
I also like the Grey Knights, despite having knight in the name they are less knightly than Custodes thanks to their focus on magic.
I am a fan of Imperial Knights but they rank third on the knightly scale, too much focus on the big robots for them to be higher but it's fine, I also like big robots.
Of course my favorite marine legion is the Dark Angels, not only are they knight themed to an extent but their Deathwing fulfills the heavy armor melee focus well enough.
>space marines but all gold
That's not particularly true, my favorite Shield Host is the Solar Watch, but even if it was I don't see the issue. Nobody whines about the Imperial Fists for being all yellow, or the Blood Angels for being all red, or the Minotaurs for being all bronze.