I think a guy who insists on seeing other women naked will have a neglected unhappy wife at home who may decide she needs to go out shopping for some dude who can lay some major pipe into her......
I think it is totally normal and your wife should not care unless you are filling their thongs with one dollar bills, and it is cutting into your budget.
Normal but I find strip clubs to be a waste of money on chics who go home to black pimps and are really nothing more then a few hits on their crack pipe from becoming a hooker. Kind of like hooters.