Vtubers. Popularity. Fan favorites, etc. Suisei is one of, if not, the highest selling SP/SSP cards because she’s one of the more popular, well-known, and liked Holomem. That leads to more people wanting to get her card. That means a higher price. Or… maybe if a retired/graduated/terminated member still has their cards printed, people will also wanna get their hands on it because there won’t be anymore cards produced w/ a signature in the future of it. Vtuber Weiss Schwarz also seem really expensive in the first place, but that’s due to the Vtuber community itself and how much they want to buy their oshi/favorite member. 🤷♀️
