Hi Ryan. I apologize for not introducing myself, however people come to forums for questions/answers and discussions, not howdy-ya-do. I'm not claiming to be an expert either, I don't particularly believe that anyone can be an expert on a subject that is changing daily. However, I do know something ...
I've made 3 main points/arguments in here.
1) SM is more than FB - There are hundreds of social tools to be chosen from. You pick which ones best suit you & your business & your company.
2) A social media strategy - which was my very first answer - shouldn't just be a "SM" strategy. In order to be effective it needs to be integrated.
3)ROI comes in many forms, it can be tracked, to some extent. There are metrics to be measured, I listed some earlier. And the tools to track these metrics are evolving daily.
I wasn't trying to pick a fight, just trying to open the discussion. Not a single post had mentioned the impact of SM on your SEO efforts ...