Sex toys that are more than just a piece of latex with a vibrator. There are tiny vibration units like the one in your phone, why aren't there sex toys with 20

Sex toys that are more than just a piece of latex with a vibrator. There are tiny vibration units like the one in your phone, why aren't there sex toys with 200 of them and various patterns going through them? Why are there no sex toys that use expanding or contracting materials like electroactive polymers. The sex toy market is apparently 26 billion and growing.