I used to be a die hard collectible hoarder but it's been very hard to reliably catch any of the restocks in the last year or so, especially since they are often random and unnanounced. Not even checking every hour is a guarantee that you'll see one there.
I'm not feeling like I'm in a position where I'm legitimately angry more than just a tiny bit disappointed, but I do think it is a shame that cool new updates to the forum become something enjoyed by only portion of the userbase. Anyone who wants to enjoy new collectibles should be able to enjoy them, not just those who are lucky and get there at the perfect time. Not even that but new collectibles should be fun, not a sudden feeling of despair that it's another thing you'll have to buy of other users, or in some cases another collectible you may never get without having a fortune saved up.
It isn't like there is an advantage for more users being able to have a little mushroom icon on their profile. So why keep the stock so low and so limited for so many special collectibles? We already have things like the golden egg. I like the golden egg, because you actually have to work for it. These other "rare" collectibles are a lottery run which is fine here and there, but on such a large scale it just becomes frustrating.