I've seen many posts and threads about price speculations and hitting 5k per coin.

Now, to try and stay a little bit on-topic:

What are these speculations based on? Althought, I'd say hell yes to BTC being worth $5000,- per coin but I can't really see this happen.
And no, the reason why I can't see this happen is not about the drama caused by Gox.

Is anyone here able to clarify this?