It’s interesting feedback but having sold a couple hundred yoyos over the last 5 years I’ll be the naysayer and disagree with the premise that someone else owes you or others the duty to properly record price history.
Resources exist for you to ask if you don’t know, such as:
- Yoyo Appraisal thread (I believe current one is here: Yoyo Appraisal Thread II)
The vast majority of throws don’t fit into this stated category of yours ($300+) and tracking (while neat and database fun) would not fall on the average user/seller to accomplish this for your benefit for such a small sub-community of collectors.
The demand/market fluctuates per throw in a secondary market all the time but generally at a loss except for those special few (be it specific throws, brands, etc.).
In general I’d say this is not a for-profit hobby and those working to make it such will fail out. I generally sell yoyos, even brand new, for a 30% loss on average as a buy-to-try hobby (yes, even titanium).
Beyond a best practice, there’s no accountability that someone HAS to write what it actually sold for. I can easily imagine individuals mistakenly or purposefully breaking a recording system and create outliers with incorrect sold prices - - they’re not required to tell you what it actually sold for vs their asking price which is what’s usually in past posts here or on fb marketplace. You can yell at the sky and “require” it all you want, but it’s not their problem. Nor is it a free forums obligation to solve this for you.
@kawaii.kaede Honestly this sounds personal and if you’re that passionate to solve the problem long-term there are many ways you can educate yourself to go make a resource to track it and scrape/keep it up to date yourself carefully maintaining the data or work with like-minded individuals to record prices across the many forums, reddit, and fb groups that exist.
Even on collectable art or wine forums, there’s zero accountability to record a history of ebay sales, forum sales, etc. beyond self reporting by (sometimes less than) single digit percentage of sellers or a handful of volunteer mods.
Solutions start with an idea and passion to drive it home rather than telling someone else to do it.