Interesting Ann. Couple of things...I've been on this shooter and under size requirement for some time....but occasionally I stumble on the bigger sizes of all types of marbles and have hung on to those too. Mostly, I'm collecting and not selling, and so, if I want to see them as bigger marbles, I just use my scope or loop and bingo, the get bigger! Storage issues are lower, and I find more specimens, for less money, and have much more room for them in my drawers. I rather think big marbles are sometimes kludgy, overstated and indelicate. And, I too only have one sulfide and it breaks my size rule by almost 2x that came along with a small number of hand mades....and I decided too I should have one. A first and last sulfide for me (and but I don't decry those who like them; I enjoy the enthusiasms of others even if I don't tag along).