Buy sealed because you want the box and understand the thesis, not because an article says every sealed Pokemon product must rise
The tweaks mostly focus on recent products in Pokmon's midrange price bracket
Add in the low supply of many Reserved List cards (which occasionally allows sellers to manipulate the headline price number by listing a copy at an unrealistically high price point, which is how we ended up with Moat at $100,000 this week, even with a BSG 9.5 copy for sale at $3,400 and a played copy at $1,500), and the headline price of a card tends to overstate the price that you can actually get the card for, if you are willing to lower your standards a bit
Your opponent has a 5/5 flyer
For the most accurate number, cross-reference at least two or three reliable sources to get a balanced view of the current market and avoid making a bad deal
TPCi confirmed this today on their Instagram story today