I would bet someone out there has attempted to come up with a high-margin tongue depressor with fancy built-in features. But the plain wooden stick is already

I would bet someone out there has attempted to come up with a high-margin tongue depressor with fancy built-in features. But the plain wooden stick is already entrenched and obviously effective (for depressing tongues). This is the opposite. If the state of the art was a fancy tongue manipulation machine that cost $30k, used licensed consumables billed at $100/patient, and did a bunch of non-essential things that doctors found convenient once in a while, would someone selling a box of sticks get anywhere?