No, I didn't say the OP is advised to sell everything. Franky, I don't know what OP should do. However the message I am getting is that if you buy an S2 and want to have backup, get a second body. I assume that few professional photographers would see it as a wise expenditure, though. My point is only that everybody is talking about how you're going to have backup. Lots of different answers, but they all involve lugging along a second system. This seems to be a serious issue with the S2 because with any other system a backup body won't break the bank.
Or another way of putting it, there is lots of advice here for having a backup system, with the tacit awareness that the best approach, that being a second body, is a financial back breaker. "Since a backup body is a nonstarter, what's a person do do for backup?"
My initial reply was a bit tongue in cheek, as the pricing of the S system is causing such havoc amongst those who want to buy or already own one. It looks like such a lovely system, and is so much simpler than the other MFD systems, but I must enjoy the S2 only vicariously.