Auctions generally only work on items that have extremely high demand, that also have a very distinguished market price. Something like a Connor McDavid Young Guns rookie card might be a good candidate for an auction because there are hundreds of buyers at any one time, and if the price lags someone will bid it up in hopes of getting a steal.
The only reasonable use I have found for auctions it to liquidate inventory. I sell media. I do not have a retail location or a store front. If I have excess inventory where the market has shifted, or maybe I made a bad choice in stocking it, I'd rather look at it as a sunk cost and lot it up even if I won't "make my money back". It is also a benefit for tax purposes, because your inventory is an asset that cannot be written off until it is sold or disposed of. If you have a particularly strong year, liquidating stale inventory can make you additional money by proxy through lowering your income, and thus lowering your tax burden.
Auctions also come with more headaches. With either BIN, or Best Offer, it's very rare for someone not to pay for something within 5 days. With auctions, it is pretty common for someone to compulsively bid on a listing, and decide not to pay.
The reality is that especially in Canada, there aren't many potential buyers for a lot of items. For something that sells for $20+ shipping at BIN but takes 3-6 months to sell, you probably will be lucky to get more than a few dollars in an auction. There needs to be high demand to drive auction prices.
