That's interesting. That's the same one I have, but I only paid $27.99 for it. I couldn't remember what the model was, but Amazon shows that I purchased that model and clicking the View Order link it shows $27.99. I guess I bought at the right time??? Maybe it's tariffed to death?
https://camelcamelcamel.com/product/B00EO1H3X8
Looks like it's steadily increased, labor maybe? Just a WAG on my part to be sure, I'm too far away to legitimately speculate.
likely the chip in it is out of production
lots of products like this are increasing because nobody is running the older cheaper fabs