The PCIe Coral TPU (with 4 TOPS compared to the Hailo-8L's 13) is still $25, and the USB 3 version is $60 — there aren't many low power alternatives and $70 for the bundle seems reasonable (with some profit margin) for what it has.
What are the alternatives at this price point? Given that a "Hailo-8 Starter Kit" is $179 (I'm not sure if that's more of less powerful than this Pi one), the Pi offering seems like a good deal. But to be honest I have no feeling for what 15 tops and a load of supporting software should cost.
The starter kit contains the Hailo-8 (26 TOPS), whereas the Pi AI kit contains the Hailo-8L (13 TOPS), so the pricing of the two seems more or less in line with each other at least
https://www.fpgadeveloper.com/multi-camera-yolov5-on-zynq-ul...