Several years after their release, and with little interest in the faction, I somehow wound up with around 30-40 . . . likely from miscellaneous Castle minifig lot purchases on eBay.
Then, about a month (maybe two) ago I saw a collection of Crown Knights (approximately 190 minifigs) all with helms, weapons and shields, with about a third being horsemen with body armor, helms with visors and horse bardings.
With the lot going for far less than $2.00 per minifig, I couldn't resist. In the end, the total jumped higher than I hoped to really steal it for, as others likely had the same idea as I did, but I still made out (about $2.85 per minifig).
So, I have around 225 Crown Knights, now. I still do not really care for them, but at least my ever-growing Dragon Masters faction will have someone to mount an attack on (and, of course, annihilate), until I can get my Kingdoms Lion Knights up there.