The following video is part of our "Motley Fool Conversations" series, in which research analyst Lyons George and industrials editor/analyst Isaac Pino discuss topics across the investing world.

With Facebook's hotly anticipated IPO on the horizon, Lyons and Isaac butt heads -- er, politely disagree -- over the relative merits of buying into social media. Reports on Facebook's valuation have been hovering between $85 billion and $100 billion. Does a company with $1 billion in earnings really justify such a hefty price tag?

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