That looks neat! Anyway, try asking in the Pokemon TCG forum. I'm sure donvannj will be happy to help you. :) Though I can already tell you, that seems way too high for that binder. But I'm not 100% on that. Never seen one go for that much though. Anyway, just make sure you don't try to sell it here, as that's against the rules.
But yeah, this forum here is only for questions about the forum itself.
vacationing in unova for a month! see you soon! ●starboy●
But since I'm here already and happened to recently do a search on those Japanese Neo Binders for myself, I will just go ahead and tell you its value now: $10 USD is typically what they will sell for on eBay, with the lucky few having their listings sell for up to $20. That $2500 listing is just completely and utterly ridiculous, though I am not seeing it up myself anymore.