Glass is a perfect example of a trendy sex toy, since it exploded onto the adult scene a handful of years ago, the rise in popularity has been astounding. All of a sudden there are new companies that craft only these Pyrex creations. As a result of the high demand, many are priced into the hundreds of dollars.
We don't think that's justifiable, even though the very expensive ones look really nice, the quality in the cheaper ones is the same because they are crafted from the exact same material. A probable reason that these are very popular is the hygienic properties and ease of cleanliness. They can never grow bacteria because there is no pores in the surface and they are completely body safe.
