There's no "flipping," prices are barely over MSRP. At Gen Con you could by boxes from "scalpers" for 200. The singles market is already way below expected value. Maybe prices go up when we have the actual release and people realize that LGSes got boned when it comes to actual allocation but the second wave is hitting in mid September anyways so it will get corrected pretty fast.
Unless your LGS is different than the few I know, the September restock is a whisper of a myth. My LGS is one of the largest for product, and are getting like 64 boxes for wave one, and like 24 in the september restock. Boxes, not cases. This is a store that for most TCGs would get around 1000 boxes, or more.
There is almost no chance this product stabilizes until October, and more likely not until Q1 2024.
However, yeah, unless you're planning on flipping to someone or just really want to play, there is no reason to pay over MSRP. there is nothing special about any of these printings, no first edition perks or markings, just a box of cards.
And GenCon was hilarious for it, cause it is a good mix of scalpers and people who just want to play and also families who want to play who arent core TCG players. Cause the line would be 1000s of people (roughly 2 to 3 city blocks on friday morning, the width of the convention center, then down to Lucas Oil for those familiar with the con center) at like 6am (doors open at 10), but once starter decks and accessories sold out, the line would vanish and if you just wanted to buy a box, you could essentially walk right up for about 90 minutes a day.
There were streamers there who would buy boxes for double retail to crack on their channels, cause they didnt want to stand in line. The first of each rarest card rarity were selling for roughly a grand a piece. And most vendors would buy the box from you for 200 to 250 (it cost 150 at the booth) and resell it at their booth for $300.
The game is also pretty fun, its basically MTG, with a few twist.