In the sense that most of us have them, etc.
They're advertised on MN, but the reality is you never see them mentioned in mainstream books, movies, TV, etc.
Silly thoughts on a train passing time on a Friday evening!!
YABU - no of course they are mainstream, most of us have them
YANBU - yes, they are niche, just see ads for them on MN, but not much out there in the team world
If you've found this page in search of vibrators that have been tried and tested by fellow Mumsnet users, you might find our guide to the best vibrators useful. Hope this helps! MNHQ 💐