Scenario time; you're leveling a profession and you're dead set on capping out in one shot. You've stockpiled all necessary materials, you've printed out a handy-dandy list of crafts, you even put the kids to bed early and appeased the wife with a candle-lit spaghetti dinner and tall glass(es) of expensive chardonnay.
Bam. You're short on materials. That 400 you stockpiled wasn't enough. You're going to need 4 more stacks and the only seller at the AH wants 200g per stack. Slash Two won't help either. You bite the bullet and purchase the "overpriced" stacks.
We've all been there. We've all been "ripped off". Can't be arsed to wait until goods appear at "reasonable" prices, right? But it doesn't have to be that way. What if you were the one strategically posting low-supply goods at extravagant prices? Pay it backward, if you know what I'm saying. I mean, someone needs to provide these services.
Here's a nearly-complete list of low-supply goods that often follow erratic and spiky demand patterns. I've included the ridiculous prices at which I've been able to push the goods, along with a comment where adequate;
199g | Used in
motorcycleKhorium Power Core crafting.
75g | Used for and JC leveling.
| 299g | Gnomish teleporters, Primal Might, various enchants.
899g | Master of Transmutation and Runed Adamantite Rod
159g | Twink weapon enchants (agility)
Simply set your TSM/ZA fallback very high and threshold at "normal" prices. For the first 5 goods listed, play around with prices until you've reached a happy medium where your sales are just enough to keep stocks low, but never clear out your inventory. You industrious folk can even use Undermine Journal notifications to alert you when a certain item is unavailable at the AH.
Got more items to add here? Let me know and together we can conquer the world.
Sterling beaming out!