I had this problem like a boss when trying to buy the Cresento doll. It seemed like they had just vanished off the face of Gaia, which yeah I know, he's a popular doll because of the hat and all, but geez! I finally was able to get one when someone that had seen my wanted thread tried to pm me, I wasn't online at the time and they finally listed it so I could get it. emotion_hug
Trying to buy a Celesse doll was a real headache. Unpopular staff dolls? It's not that they're super expensive or anything, but there's just not listings. Funnily enough, after I had someone approach me in my buying thread (which mind you I'd been bumping for about a week) and sell it to me for a reasonable price, there were a couple of listings in the MP.
I'm after a Skittles Umbrella now, but I haven't seen a reasonable listing in the MP in months (one that is in line with the ABP & previous trackable sales). Along with that, I haven't seen one change hands in the Exchange (I tracked threads & such) for well over 12 months. I have a feeling this could be a long-term quest. So I threw my hands up in despair & bought Lovely Lucie instead.
...what do you mean that their pricing isn't at all similar? xd
I think I'll be bumping that buying thread for a while.
This happens to me all the time, either I like items that are extremely common and cheap, or uncommon and expensive. Not even that expensive...usually items I like in the 400k-5M range fluctuate like crazy and frequently disappear. Especially when I finally make enough gold to buy.