Not sure of who decides on the MSRP. Here in Canada you can find them on Amazon .ca for 375 canadian. So if you convert that to USD its about 326. i guess you do save a little
WashCycleMSRP Doesn't mean "Price it costs on Amazon," It's the manufacturer's suggested retail price . If retailers want to sell for less than that they can, doesn't mean the MSRP is incorrect
Edit: the 320 price looks like a pretty recent price change.
https://camelcamelcamel.com/Blackvue-2-Channel-microSD-Integrated-DR650S-2CH-32GB/product/B01H7WJHZC