How about, just don't get divorced, or you could always get a pre-nup if you're so worried about your assets.Me
Its not necessarily the assets although they are important. Its the problem of what happens when things go wrong.
If there are any kids involved, I doubt that a pre-nup will mean anything. The kids are not at fault so of course the mother will get custody and the father will need to make payments regardless of weather or not he can afford them.
As far as I can tell, long-lived marriages are becoming the exception not the rule.
The best man that I have ever met (list all of the things you want in a man and he met those perfectly) was married for about ten years. When his wife had an affair, he lost his kids, the house he built, nearly all his assets, and got totally screwed over.
He seems to be a modern marriage example (although he is the best man that I've ever met). Long lived marriages seem few and far between.
A marriage without divorce sounds good. But things can go wrong, with no fault of the man and he can lose everything. Getting involved in a situation where losing everything is quite possible is much less preferable than not getting involved.