A lot of different factors influence price, including the condition and seller as you mentioned.
There are also two variations of that chip, one has a design which celebrates the grand opening of table games and has a larger inlay, while the other version has the standard inlay and is generally more desirable as it matches the rest of the set.
There are also fluctuations in price due to market conditions, economy, supply and demand, etc.
It’s a great chip though, regarded as one of the best Paulson
RHC $5s out there.
I believe
@Apache still has some in stock at $300 per rack for the non-GO chips, and $43 per barrel ($215 per rack) for an even mix of both styles.
https://www.apachepokerchips.com/product/rack-of-indiana-grand-5-paulson-poker-chips/
https://www.apachepokerchips.com/product/barrel-of-indiana-grand-5-paulson-poker-chips/