As J-Rod says, it is not an apples to apples comparison. The WSM is a great smoker that is easy to use and puts out great BBQ. It can be used for direct heat grilling, but it is really not made to do that and is in more hassle that it is worth in this regard. As a smoker, it is easy to control and has more than enough capacity for most things you will want to do. The CG Akorn is much more versatile in more areas because it can do direct heat, indirect heat and low and slow BBQ. I use mine for pizza and have also baked bread in it. The downside is that the Akron does not have the capacity of the WSM when it comes to BBQ.
One thing you did not mention in that price range is a Weber Performer because it also falls in the same price range and can do all things, but is best when used as a grill. It is something to consider, especially if you are new to grilling/BBQ.
It is all about trade-offs.
WSM, 99 & 09 Performers, 2-OTG, SJG mini WSM, Summit 420, Q100, Akorn, and Schwenkgrill