There is a difference in how the two scale, because one is physical.
Adding a BTC to a transaction doesn't really require any additional infrastructure. But once you've packed your first tanker with gold, you kind of have to hire a second boat.
Given the way each scales, it seems that BTC transfers are easier, at least at some values.
The word "tanker" was evocative, I wouldn't get hung up on it.
All I was saying was that physical stores of value increase in awkwardness (principally through weight and volume) when you increase their number, not so for digital.
Adding a BTC to a transaction doesn't really require any additional infrastructure. But once you've packed your first tanker with gold, you kind of have to hire a second boat.
Given the way each scales, it seems that BTC transfers are easier, at least at some values.