A while ago @Chris said they were leaving it in in case someone came up with a good reason to have it. I haven't heard any yet. Here are some great reasons to NOT have it. If you are restocking a vendor from your bank, and the stack is in another town, you can't list from a partial stack. You can either take it into inventory and put it back in the bank, several clicks, or click drag it within the bank (if you happen to have learned this trick) and it switches to the town you're in. Still a unneeded click in a world of too many clicks. If your bank happens to be overful (it happens) and you do the non-tricky way, now you're totally screwed as you can't put the items back until you take a day off from work for bank inventory management. MORE annoying is that if you didn't see it was in another town and it's a stack, you split the stack, using up a bunch of your lifetime allocation of clicks, dragged the item over to the listing window, and it pops back into the previous stack in the bank. Now do the above trick to get it to this town, punch yourself in the junk a few times, and split the stack again, cursing the idea of being a merchant with full force and energy. Items from different towns don't stack, so now you're doing extra inventory management (one of our best features), to get them stacking. See above tricks to get them into the town you are in, but since they were dumped in from different places you have a bunch of individual stacks that would have normally autostacked, but are in different towns, so now you're doing it manually. Yay! More clicks! It's a useless column that makes the window wider than it needs to be, in a world with giant windows already competing for real estate.