One of my clients wants a small business site run on Wordpress. I'm setting it up through Amazon EC2, and was curious if using Amazon's RDS service to run the wordpress installation is overkill. I could just install MySQL locally on the instance and run it that way.
The site is to have blog posts as well as business "pages". Blog posts wouldn't be generated at more than a handful per week. We don't expect readership to hit hundreds of thousands/month, but it would nice if using RDS did help by responding to peak traffic times.
Would it be better to use RDS in this case? If not, what is the rule-of-thumb usage/requirements threshold one needs to surpass before considering using RDS?