Kovabon
In my opinion, a potential downfall would be the selling of "basic" mats. If they never expire, then these mats would be around FOREVER. I generally throw "basic" mats away, and only sell "fine" or above, as they generally sell, if my price is set reasonably.
I would've thought so too until I started getting serious about overseers and grinding craft levels.
At first, it was just thinking that I'd be willing to pay a few dappers to get out of digging the hundreds of mats needed for my favorite Overseer missions. (Many overseer missions I take are for non-Tryker gear >q150, but Lakes is the only place I can dig over q130.)
Then I got a few craft skills to where I got less than a level a bag. At that point, it became clear to me why the price of q250 Basic/fine mats was as high as it was. Sure, you get some in there at +9999% for storage, but there is also a fair bit of it that is priced low enought at it's obviously for sale.... and a fair number of people who are willing to pay that much to get out of an hour of digging.
Also, there are certain recipes that call for Basic mats; even replacing with Fine would lower the stats on the crafted item.
In short, Basic mats are more useful (and thus sell better) than you would think... at least for q250.
---
Do not assume that you speak for all just because you are the loudest voice; there are many who disagree that simply have no desire to waste words on you.