Well it really comes down to how much you want to exploit LinkedIn for your own benefit...
If you are representing a business then I would consider it... If like the vast majority its only for personal use with connecting to people you work with or encounter on a professional basis then I would not bother...
If however you want to leverage for business use then you can use it to recruit new staff, create a business page similar to FB, you can post articles, create groups as well as track members whom visit your profile together with driving sales (sales navigator)...
I personally dont use the premium account but can see that alot of business are obviously using it... I've also heard how of IM'ers doing very well on Linkedin as means of targeting traffic and gaining sales... On that note I think it would be awesome to hear of any members experiences of linkedin premium as to pro's vs. cons as I'm actually quite tempted to perhaps give it ago...
