Envy:a headcanon about your character's secret desires and jealousies
Crowley is not materialistic in the slightest. There may be a tinge, here and there. But it’s probably just a trait that’s leftover from when he was human. He was a really simple man. Didn’t really care to have much. Maybe it’s just who he is and it was exacerbated by, or it was a personal choice due to his role as a Templar, and their position with the Church. Either way, he was ‘from’ a noble family, but chose to live in a pretty spartan little cabin. And in current canon, he pretty much uses city hall be cause it’s a good vantage point. He hasn’t really done a lot of redecorating, aside from probably making it a little more ‘livable’. And in comparison to everyone else’s uniform, his is fairly simple. (Considerably less frills and layers). So, I’d go as far as to say, that trait really has carried over.
So, his desires wouldn’t necessarily be of the material kind.
Honestly, deep down, I think as much as he’s come to ‘dislike’ and depersonalize humans, I think he envies their mortality. He was set to die the first time he was bitten. He’d made peace with that. And with the fact that he would indeed one day die. Hell, he pretty much figured that on his way to Egypt. But that’s now another part of his curse. He’s not worth saving, and won’t ever be granted the release of death. Not that there would be a heaven waiting for him anyway.