Oh I'd just like to pop in and add that at this point it can be *very* hard to find items that are from older updates/releases if they were oversaturated at one point, because if everyone finding them thinks "oh it's another [item], this is so common I'll just sell back" that means folks can't find them to buy on the market. (source: I can't find some of the rugs unless I get really lucky on a hoard myself!)

Also from what I've seen there really does seem to be this big gap in the rarity between like, 65% to 30% where it feels like these items are much rarer than the 0%-30% items just because of things like rarity excluders, which we like to use to avoid the dreaded "plastic curse" any time you search for an item with a pet whose WU range includes 5-15.