Bad spellers of the world untie
If you are not going to hold the original misspeller to account, well it is only a few quid, but you should have charged again.
The misspell domains can be useful though, so I would flog it to him on the basis that people may misspell the domain name just as he did and tie that domain to the top domain.
Domains are two a penny nowadays, and Google is not bad at avoiding the domains with no content and are really just link farms.
The .com domain is not all the big really, sure it gets the default in an American browser, but really each country should be able to knock out a browser.
That's what I would like to see more of, more country orientated software production; I want to spell colour, colour without the red squiggly line underneath, I want to go to a .co.uk domain if I just type a word into the address bar.