I notice a lot of botters also buy gold, but why? If you are making 10k a day from botting, do you really need to buy gold?
when bitters start on new servers some might buy gold for professions or various thing they may need to get to farming
i bought gold on a server once, only to start making gold, now i just sell a battle pet on other server instead. not all people bot for gold also, you need to remember that, i initially started botting so i could have "equal" chance of getting gear on my toon because i wasnt playing much.
I do buy gold if I start with a new 5 man group. the reason is that when you are lvl 80 and 85 you will need to buy gear to get an higher itemlvl. I just buy 10k for 5-7$