considering josh, pp and rm are barely posting, i really doubt i'd be logging in here

[Busty Doll]

the coin has a market value

No need for "bidding"

That's what constitutes a market: a Bid and an Ask.

But you have to explain the rationale of the bidder.

For gold, it could read something like this: "Of course I'm prepared to offer $1 an ounce! I can always use that gold to make a tooth."

But for bitcoin there is no explanation. 

"I can get rich if I find a second fool" is their only hope. 
But this must come to an end as soon as the biggest fool is located