The 5% coupon appears to also work for the 3200MHz speed and saves an extra $4 ($137.74 in cart).

If, for some strange reason, someone wants to save even more money (~$7), they can get the HP V10 kit at 3200MHz, which saves money by not adding a temperature sensor. Both the Acer Predator Vesta and the HP V10 are binned and manufactured by Biwin.

My opinion: if you're locked-into AM4 or 11th/12th gen DDR4, a 32GB B-Die kit is very vaguely worth it because you can run it into the ground with your PC and don't have to worry about kit compatibility if you wanted to add RAM later. But if I were building a new PC now, I wouldn't bother -- just eat the cost of DDR5 and the newer platform.