In "Social Media Marketing", by Jason McDonald, he expresses that individuals should look into purchasing a LinkedIn account because it "looks better" to employers. The issue I have with this is that the stigma of purchasing websites to be more successful was man-made. This is encouraging young people that they can buy their way to success, and not necessarily work for it.
While I understand that media companies need money to operate their sites, the extra tools offered with a purchased account are usually analytics about who is watching your page. On Facebook, you can have that analysis for free and more information.
Depending on what your business needs and where your target market is, LinkedIn might be the best option for you. My only suggestion is to take advantage of all free tools given to you before you purchase a page.