I think that sex toys are not necessary negative, but not completely positive. Personnaly I don't like sometime the vibrate like those toys, but somepeople like that. I don't thing that those toys can remplace a male, because it's plastic and you don't have the sensation of a other people next to you. Often, some people are alone and be satisfied to have those thing. I thing it's can be good in the optic that some people can't satisfied there need otherwise, but it's can be negative if they don't thinking about other people. I thing that guys that use vibrator with them girlfriend have fund a compromise with all that.
well I like my sex toy because it lets me orgasem, when I try to do it by had I just cant. But in saying that it can never replace my b/f, I love the feeling and warmth of him - and he gives me a diffrent type of orgasem. he has no problem with me using my toys ether.