You see he also put up a list of 150 domains for sale on here very cheap
So you would imagine he may have registered 200 domains at £4.20 - £840
Spent time researching and emailing companies offering those domains, say 5 each at least, 1000 emails
So it wasn't just he registered a dozen domains sold them all for xxx amounts
I'm sure he made a good profit still, but a lot of work and a decent sized initial outlay was needed