After having a discussion about this with a friend, it seems a masturbator is a perk when you have the time and interest to really ENJOY it. The problem is many if not most men only spend a quick moment when they masturbate. There is no love in it. IF however he takes the time to enjoy himself, or you can use a toy on him in that way... you will both clearly see the difference.
Another thing to think about is the toy you select. Clearly when a man has a willing hungry woman at his side, there is less need for a traditional masturbation toy. So... you will want to select ones that do NOT try to mimic natural sensations. Pick ones that are more outrageous and pure joy, instead of the ones claiming to "Feel like the real thing"
If you do this, I'm sure you will both have fun with it!