I would not invest in facebook either, They are at 60% of their IPO price. If you were looking for another example of a company that cannot monetize, you found it. No strain there.
But really your post shows an emotional attachment to P. regardless of any other equity THIS one cannot monetize, unlike facebook when P adds users they costs do not increase incrementally. The fact tis this, P pays for content it gives away. I am sure you are a good person just defending your decision but take a step back and think about the equity for one minute. Other then lobbying in Washington, what is their plan to monetize the company? There is none. There is no doubt they have the listeners but the non paying listeners are a strain on the company. If the number of non paying customers doubled every month they would go under by next summer.