i checked a few combinations, comparing cpu and boards that are closest or same in price alone.
the lower tiered ryzen 1400 gets almost no discounts. whereas the very cheapest g4560 + board gets $20-30.
ryzen 1600 gets ~$10-20, intel gets ~$40-50
ryzen 1700 gets ~$40, intel gets ~$60-70
the 1700x/1800x vs x99 line is similar, both ~$50-70
this is enough to price ryzen combinations above equivalent intel combinations, when they're supposed to be, and are slightly cheaper alone.
meanwhile
https://www.reddit.com/r/Amd/comments/638g72/100_off_ryzen_1700_with_purchase_of_mobo_at/
us microcenter gives $100 usd discount on ryzen 1700 with purchase of motherboard