At today's exchange rate of ~800 USD/BTC, this is 0.7 cents.
Thanks.
For a standard implementation, the size is closer to 250 bytes, so 50 times higher. That means 35 cents.
Was intending to answer this:
How low do you think they would go?
* "cost" is in quotations because it's not really a cost per se, but a reduction in expected revenue
It is a cost that should be accounted for.
Sure, of course. I just like to be precise, as it has implications when thinking about collective miner strategies. Not relevant here though.