The four Special Illustration Rare Ogerpons have all dropped in fans estimation, as the Gen IX Pokmon simply isnt popular enough to sustain high prices across so many cards, and the Gen I Pokmon Chansey has managed to absorb some of that value, becoming more expensive than any of Ogerpons versions
Unfortunately, these other variants dont help to dramatically increase supply, either, as there are only the Extended Art and First Place Foil variants
Key Card Price Stability Mew ex SAR : Launched at ~16,000 current 55,000 (+244%)
Repeat until you have a basic Pokmon
A personal account is fine to start, and you can switch to a business account later when volume grows and you want cleaner tax handling and stronger selling tools
While the card might have received a higher grade based on other factors, significant centring issues warrant the OC qualifier