Do you name a landing page quite specific to what its covering or just fairly close? I mean the html file/page itself and not the title... If its a landing page for a london service do you name it london.html or london_random_service.html In the above example there may be a dozen seperate pages, for various cities. If the visitor glances at it do you think the naming of the page being quite specific will make a difference to them?
I find so long as the destination/landing page is related to the keyword, it's ok and no need to go about setting up individual landing pages to try and perfect it word for word. A tip: use the Google keyword tool and put in the landing page URL and get Google to return with keywords it finds relevant. The keywords it brings back is a good way of gaging, what Google thinks of that page. If your keyword(s) relate to those words that is fetches up - you should be ok.