I don't have any issues with Nathans sale, we can all ask whatever price we like, for the items and our time.
Knowing what we do about the build he may not get that price on here.
The bike I'd like to swap wouldn't fetch that kind of money but would equal Nathan's cost of build. He'd like a profit, I've taken a hit on the cost.
I have a bike I'll not ride, he does too and for an easy transaction it depends what's most valuable.
We pay a profit on everything we buy and would no doubt be shocked at sellers costs, but a buyer will pay however much for an item they desire.