The real reason I use "conditional move".

In correspondence chess, I only use conditional move to save you time.   You know I'm going to recapture or move my king out of check, I have no choice.  While you're mind is on the game, might as well give you a hand, help you save time, I'm being a nice guy.  If you don't like it, just let me know, no problem.

OK, the real reason I use conditional move is so that, at any point in time, perhaps I'm out driving, perhaps watching tv, I could be, right now, this very moment, even as I write this, putting someone in check mate.

I could be sleeping, and, without even realizing it, at that moment, someone, somewhere in the world is just that moment being beaten in a real game of chess by me.

I could even be showering shaving, or vacating my bowels, and, at that same exact moment, I could have just put someone in check mate, complete with rating increase.  

A powerful "vacation", if you will. 

While my wife and I may be renewing our romance, I could simultanesouly be ... someone else on the other side of the earth.

Um......

that's definitely an interesting way to look at it...

Actually, it helps me economize my time, so I don't have to re-invent my strategy, and the biggest reason of all to use conditional move is to not forget to re-capture on an exchange.