Post your experience with those lots in the comments below.
I've been observing a seller who's been selling Pokemon Trading Card Game Sun & Moon Guardian's Rising Booster Packs.
They've been listing 1/6 of a booster box (6 packs) for $27.99. That comes out to approximately 4.67 per pack.
What's suspicious about that seller is they didn't state if their packs are "unsearched," and their feedback is "Private."
That seller could potentially be making a profit off their lighter packs that contains either a Rare, Rare Holo, and maybe an Ultra Rare GX card (if a buyer purchases more than one lot).
A Guardians Rising Booster Box sells for about $90. They're making $167.94 per box (before expenses).
They could then turn around and sell their Ultra Rare, Hyper Rare and Secret Rare cards to boost their sales past the $200 mark per Booster Box!