Bid history of a $1 start ebay auction

I've just sold a nice, but in recent years un-used, short wave radio on ebay. My practice is to start at $1 which tends to garner a bunch of bids early on. The theory is that this makes other bidders pay attention and increase the chance of a bit of a bidding war.

Here's a graph of the price bids vs time.



The radio sold for $565 and $100 of that was in the last 60 seconds.

I often see items with a starting price at a good price but with zero bids at close presumably because bidders are worried that if no one else is bidding, the item isn't worth it for unknown reasons.