Married man and masturbation
It does not mean anything for his feelings toward his wife or his relationship. If he was single, more-or-less, he would need to masturbate to stay sane. Your husband is not some rare diamond in the rough who doesn't look at porn.
Electric masturbation products
Porn and masterbation is completely normal. Ideally you would both be each other's only sexual outlet but most women today are simply willing to do that so their man is left hung-out-to-dry. I agree with Ocimom up to the point the blame is put on him.
Should I leave my wife and kids for my mistress? Porn then fills the gap.
No its not normal. Is it normal for a married man to choose to masturbate when he could have real sex with his hot wife? Any families live in a small house?