As someone who's tuned into deal sites: Yes, to some degree. But there's still plenty of good deals to be had. Especially when things don't go as planned. Don't you remember last year's Xbox One debacle? We're talking a free xbox one, and possibly additional credit, on top of extra controllers and games.
I also apparently got 24 bottles of VOSS Norwegian water this year for $3, and that stuff is supposed fancy or something. Ordered that for giggles.
Someone else got a Mini Segway for $160 iirc.
I nabbed one of their Big & Tall (up to 350lb) Office Chairs for $100, which isn't bad.
As for Prime Pantry? For some reason I keep getting a Fresh Credit of $6, no idea why, and that stacks with the $10 off $60 credit, so I can find some choice pantry items that are decently priced and get $16 off, and stack it with free shipping. And that's on top of the 5% off with my Amazon Store Card. I did four full orders, and my mail person hates me now.
Prime Day is not Black Friday. Black Friday is a day of both Purchases of Opportunity and Planned Purchases, due to general price cuts on everything (To some degree... Cyber Monday and beyond is where it's at currently at based off last year). Prime Day is only Purchases of Opportunity, as the thing you've wanted probably won't go on sale, but chances are if you check the deal sites enough you'll find things that you'll buy anyway because they're cheap enough.
Sidenote: This is what you guys should being paying attention to: Lowe's 10% off, which stacks with 10% Self-generated coupon codes (see top comment), which stacks with 7.5% cashback through ebates.