As soon as it becomes clear that Segwit2x will do no major harm and the future looks bright again, I will buy back.
Segwit2x bears the risk of a major disruption of the bitcoin economy. See how much damage b.cash has done and how much worse it could have been with just a little bit of more bad luck. Segwit2x is much more dangerous.
Of course there is also a good probability that bitcoin keeps a reasonably high hash rate and that users stay with bitcoin and shun Segwit2x. But even then there is the missing replay protection and possible attacks against bitcoin.
Just today Segwit2x inserted code into their client that camouflages it to make it look like a bitcoin client, with the intention to break down certain bitcoin defenses against the hard fork. And this could be just the beginning of damaging behavior, for example to increase the damage done by replay attacks.
I cannot take that risk and fortunately I don't have to, so I am bailing out. I would much prefer a continuously prospering bitcoin economy, but apparently that is not always easy to achieve.
Bitcoin has been around long enough for me to believe it will probably make it through this. It would be helpful to have some clarity from the exchanges as to whether they will/still support 2x. If Coinbase and Bitpay drop out, it will probably be another worthless alt with minimal impact.