The little accounts are the ones that keep the lights on and the doors open. If all you had were big accounts, losing one or more of them would be far more painful. A $900 account renewal at 15% is far less painful to lose than something 10x as large.
I agree but I also think you should target these accounts as well. Plus those accounts stay on the books longer and you can block markets once you have control of the account.
Find a good wholesale that has niched with some high premium accounts and start prospecting, maybe it will give you that motivation that you are looking for.