A good house listing is like good wine. For example, for you to fully understand a seller’s needs and wants calls for you to put in time and attention, much like an upscale French winery making a good wine with emotion and time. However if an agent were to rush through a listing without fully acknowledging its “highest and best use”, he would not be able to obtain the best price for his sellers which is what they want. This much like a commercial winery that only focuses on producing as much as possible while lacking quality. For example when a sellers is trying to sell a house where he has been living for years, a house where he has committed so much emotionally and finically, does he really want an agent that is overburdened with clients, or one with an optimum number of clients? He would most likely want the latter.
Dealing with a house needs time and attention. The number of listings that an agent can handle has limit. If he goes over this limit, then he will diminish his ability to meet the wants and needs of his clientele.