I will say what i said on the nexon forums. You must have a lot of time if you want to continually update commerce prices. All tier 4 commerce items continually fluctuate, they drop like a rock if more than one person uses said item to same town. And as a high level commercer, this tool is essentially useless to me because of that, this tool is invaluable for lower levels, but for people who have level 9 in all towns, those people know that tier 4 items and a few linited items are the best to use.
Not knockin on your work by any means. But just bringing a topic of discussion on the nexon forums
And regarding constant updates via web server, that serves no good on profits on said items. One SINGLE trip with these items will cut profit by 1-2k with said items.
Basically, needs to stream commerce data every 5-10 minutes. If you need a further example. PM. And yes i am critisizing, but not negatively, in hopes it will prove more useful, its valuable for beginners and with some more tweaking, it will be valuable for experts as well.
That is all.
I'm not sure that the problem you think exists actually does. The program calculates the best item/town combination at that time. I'm level 9 in Taill, and it occasionally tells me to take heat crystals as opposed to anything else. This is because, as you note, selling large quantities of any item will decrease its price. But that's what this program is for, and it responds to the changes. The price drop would and does happen anyway, just because of people's common profit goals. Nothing can be done to avoid it.
Commerce prices only fluctuate every 10 minutes real time. This gives you a window to basically haul some ass to the town, before the prices lower. You can bet others will do the same. Once again, this is a nuance of the game system, and MabiCommerce really doesn't change it, for better or worse.
Profit information is as current as possible. When you select a town, profit information is immediately downloaded fresh from the server. That's what the slight delay is before items show up. When you hit Calculate, the new data is immediately uploaded to the server, and is thereby immediately available to other users. Because the webpage uses the same values, it will also be as current as possible.
Also, using TAB and the numpad, I can enter an items profits in about 5 seconds. How much faster do you need to be, esp when some/most/all values are filled in for you?