Actually, over a year ago Firefoot was THE most populated server. It has remained above average ever since.
My guess is the OP might be looking at items that were valuable a year ago which are meaningless now? Less than a year ago Isengard was released, providing whole new valuable items. That being said, dozens of people keep posting the things I tend to, which used to be more of a niche.
Mithril flakes either fly off the shelves at obscene prices, or get the price driven down like crazy when folks get a bunch from lotteries.
Cracked Rhi Helvarch Sigils used to be more popular, but now that most have crafted the items they needed them for, not so much.
Whenever I look for something and don't find it listed, I presume there's a market for that item and it sells quickly. I often have things sell in hours, and I don't price low generally.
Certain things are very volatile price-wise, other things have competition enough to hold a steady market value, pretty typical of a thriving scene. ;-) In comparison though, prices do seem to be a bit lower than some of the smaller servers that have less supply.
PS: Time-wise, it depends on the item, weekends tend to get flooded. So I don't tend to list much Sunday/Monday as prices are depressed. Weekenders also look for totally different items than those who play daily. I tend to sell more during the week, and tend not to list after Friday. But if your product is something weekenders want, then you'd want to list Friday obviously. :-)
"Sometimes survival comes down to not being hit. Actually, most times." -the chicken skill, Bob and Weave
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