Well isn't this a pleasant surprise. Amazon currently has Bloodstained: Ritual Of The Night on Switch listed with a $40 price tag. The Xbox One version of the game is the same price, while the PS4 version is $50. Nice to see there's no 'Switch tax' on this one!
Also, for what it's worth, Amazon currently has the game listed as launching on Sept. 17th, 2019. I guess that counts as a Summer 2019 release, as Summer doesn't end until Sept. 23rd, 2019.