True. It would be nice. I like the methodology that EZInventory uses, but it does not look into the tradeskill depot to see what is available there, just lists what is equipped, in inventory, and in the bank.
When I am doing mass requests, I can see it making a bit of a difference. My ballpark guess is about 15-20 seconds cut off if the item is found in someone's depot. But that can be multiplied out by the actual requests where something was in the depot, and given. For me, this is the majority of the items I have in my inventory, but other's mileage may vary. When I am just startting a toons TS journey, this can be a huge list of items at first. For example, my current blacksmithing missing list is 232 items, and maybe half of those I have in my main mules TS depot. So maybe a net savings of 41 minutes for 125 items found in the TS depot? Just a ballpark number, not based on actual times yet.