I think that you have no bids in your auction because the starting price is 0.8BTC
I remember selling one, scratched and opened, for 0.25BTC but this was when BTC was waaaaay below $10k.
Good luck with your auction, maybe you should considering restarting it with a lower starting bid.
When I joined bitcoin then was the mentality 1 BTC = 1 BTC.
For a long time did the casascius market follow this mentality, so the price was fixed in BTC with no respect to dollar.
The casascius market was beautiful back then; close to being a true bitcoin eco-system, items was fixed in terms of BTC, unrelated to USD.
I hate to admit it, but now has the mentality in casascius changed, its now 1 BTC = X USD.
Thus you cannot expect same premium for cas items compared to when BTC was 20 times lower than it is now - in terms of BTC.
Nevertheless in terms of dollar, then does all cas items have an amazing premium.
An example, when 1 BTC = 600 USD, then did these bars (in same condition) go for 1-1.5 BTC, 600-900 USD.
This correspond to 0.05-0.08 in todays money.
I am sure this bar will INSTA sell at 0.1 - thus price in terms of dollars have increased.
A true bitcoiner should strive against having a pure BTC economy, we should be in front as role models (imo).
I believe that in my life time; all property will one day be priced in crypto currency and not USD.
The fiat system is very young and incredible bad, it needs to be replaced asap, the masses has just not realized it yet.
Its just a matter of time, the fiat system is so bad by design that it break down eventually.