Would $3.5M have been too much to keep Paul Buchheit at Google? so he could have created FriendFeed there, so Google could compete with Twitter/Facebook properl

Would $3.5M have been too much to keep Paul Buchheit at Google? so he could have created FriendFeed there, so Google could compete with Twitter/Facebook properly Or Ev Williams who actually created Twitter? Or Dennis Crowley who created foursquare?