Monday Poll: Which tech company's acquisition was the smartest?

There's been a rash of big companies buying small companies to fill out their portfolios, retain customers, provide new services, shift their focus, or for who-knows-what-reason. Apple's multi-billion dollar purchase of the Beats headphone company is the one that's made the biggest splash, but Facebook's purchase of WhatsApp has been both praised and denigrated.

Thinking value-for-money here, which purchase do you think was the best strategic move? Cast your ballot here.