I have so many aspect crests that I vendor them. I vendor all of my crests and for the baby-sized ones, I don’t even make them into crests until they are ready to be sold.
The crest system was pretty much a very brief timegate that, at this point, if you start right now, you won’t even need Wyrm crests, you can just downgrade aspect crests for everything if you do the content that rewards them because the cap rises faster than anyone can potentially ever spend them and has already since exceeded the maximum anyone would ever require considering the discount system is in place.