Google has now made Google Earth Pro available for free. One of several pages reporting this is at: http://www.computerworld.com/article/2878776/google-earth-pro-once-399-is-now-free.html You can download it and get a license key at https://geoauth.google.com/gev0/free_trial.html I've used this in the past to do a first level triage on a location where I was going to fly just to get a sense of what to look for when I showed up there in person. Andy.
Andy - always a treasure of information. Thanks for sharing this - we were just debating buying a license. Apparently I now owe you $399! Cheque's in the mail my friend.