Feel sorry for some of you gents....
I'm married with kids and never run into wife ack....
You just gotta put your foot down!!
All you have to do is give them a choice of which addiction they want you to have...
"Sweety, I can be addicted to heroin, cocaine, meth, etc. Or I can be addicted to Aces High....Pick one...."

Be sure to include that acking will result in the aforementioned addiction/s and it would be wise for her to make the
correct decision..
Show her the numbers so it clicks (most women don't understand numbers but will appreciate the effort you put forth in showing them proof).
Tell her for a measly 50 cents a day, she can be sure that you'll be home every night after work(tell her she might even get a little action too), never go out on the weekends, and never
spend any money on anything else but a computer upgrade every few years..
Then show her how much it'll cost to be addicted to heroin (for example)..
Don't forget to include the cost of daily habit, rehab, legal problems, relapse, or things like hepatitis...
Now, compare those two things, and your wife should have no trouble understanding which choice to make...