Ya this is what i couldnt quite put my finger on, ty.  It isnt free.

Ah, I see, you're right. 

I only thought about mining fees when talking about "free transactions". 

There's still an opportunity cost of replacing that free TX

2bithits

Plus some of the larger pools reliably mine many blocks per day. Definitely doable from that perspective 

WeAreAllSatoshi

You can. You just don't broadcast the transaction. So the transaction will only be included in a block when you mined a block. Then you can do it for free. You just need patience.

bitcoin

Will Large Miners Operate Lightning Routing Nodes?

> But that's nothing you can rely on.

You can. You just don't broadcast the transaction. So the transaction will only be included in a block when you mined a block. Then you can do it for free. You just need patience.