Your not "losing" gold, someone else is getting it... why do you have to get ALL the sales? someone else who is more active got the gold. Nothing wrong with that. Also, I'm curious what your price is? There are some really low cost buffers and I have never seen your name show up for those. Someone was selling 5 buffs including SSI for 5k gold... is yours less? with auto-buffing, that person would get almost all the sales and you would be "losing" even more gold.
If your prices are great, you wouldn't lose the sale within minutes, the buyer would wait a couple minutes... if your price is the same or close to others, then the buyer would try another seller...
If that person selling 5 buffs for 5k gold was on auto-buff they would run out of stam quickly and then you get your turn. Or you can compete with them.
