Or as I like to scare - I mean, explain it to people:
First, consider eBay auto-bidding where it automatically increments up to your maximum.
Now, when 2 people on eBay have auto-bidding, it automatically jumps back and forth until it hits the higher maximum.
Got that?
To see the difference from eBay, now consider having to
pay for
each and every one of those auto-bids, regardless of whether you actually win the item or not.
On many of these, you might "win" an iPad for $23, but spend $800 paying for bids. Or you might be the lucky person who spends $799 on bids, and winds up
with no iPad.
Of course, it just grows worse because you don't want to be the person in for $799 and no iPad, so if you buy just a few more bids you'll surely win... except the other person is thinking the same thing. Oh, and every bid extends the clock giving everyone a chance to buy another bid - including all of those who sat back and watched until the last second to
start their bidding.
So, no, you can't get an iPad for $23. Can you get an iPad for less than retail? Maybe, if you are
really lucky. Can you spend a lot of money and get
nothing at all? Almost certainly.