On Wednesday I was outbid on eBay for a second-hand Netgear Orbi mesh wifi satellite; the very next day I spotted a brand new one in Amazon's Black Friday deals for less than I had bid for the used one. They've been out of stock on Amazon for months and suddenly they had loads available on Black Friday, hmm.
Also, got a Bosch cordless jigsaw for £20 lower than it's been all year (and I've been keeping an eye on the price).
So there are some genuine bargains to be had on proper things that real people would want; you just need to know what you want and how much it normally costs, otherwise you can get fleeced.