Just a week before paying $2 billion to buy Oculus VR–maker of the Oculus Rift virtual reality headset–Facebook founder Mark Zuckerberg tried out Sony’s own virtual reality headset, Project Morpheus, it has been revealed.

PlayStation marketing executive Guy Longworth said today during a Games Marketing Summit 2014 session that he remembers Zuckerberg asking, “Can I have a tech demo?” for Project Morpheus. Longworth said he wondered why, at the time, Zuckerberg might want to see Sony’s headset.

Now, it appears Zuckerberg wanted to check in on the rival to Oculus Rift to make sure he was making the right decision in buying Oculus VR.

“I wish he bought ours,” Longworth said with a smile, referencing Facebook’s surprise purchase of Oculus VR, which was approved today by the Federal Trade Commission, according to a Reuters report. “All the folks at Oculus have got big smiles on today.” Gamespot