Depending on what you're doing, why would it matter? To make my point, I have around 90-100 lvl 85 toons on 12 accounts, all on the same server. I have every profession maxed out several times over. I normally run 6 or less bot at a time. But no matter what I have the bots doing why would it matter. If they are mining/herbing, no problem, I can only sell so many herbs/ores on the AH, but I can send any excess to an alchemist and make potions/flask "potion of treasure tracking" from it or to an inscriptionist and make glyphs, inks or DM cards. With ores, send excess to JC and prospect it into gems, sell gems, use excess to make DE items to send an enchanter or send to BS to craft DE items to send an enchanter. Unless you are running some serious bots on one server, there is always a way to market your products. And if you are instance farming, it wouldn't matter if you were running 1000.