Does anyone else think that this seems to be, at least to some extent, a defensive play by FB? They seem to be determined not to go the way of MySpace and are t

Does anyone else think that this seems to be, at least to some extent, a defensive play by FB? They seem to be determined not to go the way of MySpace and are thus pursuing a strategy of acquiring whatever company/service begins to capture large swaths of their audience (e.g. Instagram). It seems a risky bet that may backfire at some point. If they expend $3B on a company largely to reacquire the same eyeballs they once had themselves, then those eyeballs flee the acquired property, then FB will have to rinse and repeat. A few such deals of this scale and they may have a problem. And, when you look at properties like SnapChat in particular, you see that its differentiation is somewhat gimmicky and potentially ephemeral--accelerating the need to do acquire again.