Elgato Facecam, not a historic low but a good price for a higher end but still budget webcam. I have been eyeing this and the Logitech brio off for a little while waiting for a decent price and picked this up!
Elgato Prime Lens- f/2.4 24 mm all-glass studio quality optics
Sony STARVIS CMOS Sensor- optimised for indoor use
Advanced Image Engine- uncompressed video without artifacts
True Full HD- stunning 1080p resolution at a fluid sixty frames per second
High-Speed Circuitry- USB 3.0 interface transfers image data with lowest latency
Still budget? Ymmv.