A strong single keyword with a week extension is of any use? e.g. purchase.dn (dn is just an imaginary extension) love.ap (ap is just an imaginary extension) Can these be profitable?
i don't think so when it comes to SEO. you will rank well in the local google but in .com you still have no chances.
Those are not strong keywords to make then to have value with weak extentions. You would really need the absolute best of the best to make money IMO & those ones are probably already taken. In the end of the day, it really depends on the extention as well.
yes i m just giving you extension...... on country extensions.... e.g. is love.de is stronger or jobs.de its just an example... i mean to say which keywords are stronger on country extensions.... Those which are popular all over the world e.g. love or those which point to certain aspects of country e.g. jobs.de or city.de or shops.de