While bulk traffic is extremely important to generate per views revenues, daily steady traffic is at most importance due to these three reasons:
1- It shows search engines that your site is active and attracts daily users.
2- It builds history of steady visits to your site while spikes in traffic can be questionable.
3- It increases your chances of re visits that may attract the visitor to do something more than looking at your site such as sharing to social media, clicking around, etc..
Ask me about more details and how daily traffic is the key to increase your site ranking.