Well said Cassie,
I can't say that telling the wife from the beggining is a plus or in different . From a lot of post I've read letting the wife know isn't nearly as bad as her finding out on her own. That's when the sh*t hit the fan!! You do break a trust issue that is important. She could shake it off and set boundries or she could file for a divorce depends on the depth of your dressing and your wifes acceptance.. Then would you be prepared for the new changes in your life ? What would you do if she accepted it and wanted more of it in her life would you be willing to take it further?
As for if you die and was found out, well what can I say has anyone ever heared from someone who has passed away and the stash was found?