Google is running a promotion where you can get Google Eath Pro License Kaey for pro. So you will get all benefits or completely free which you would have got for a massive price of $399 without this offer.
How to get this offer ?
1. Visit here and enter your details.
2. Click on "Sign me up"
3. On next page , you will first see an error like this -
Uncompleted License Key request
Error! Your sign up can not be completed due to We're sorry. We are experiencing technical difficulties. Please try again later.. You can try re-registering the product with an alternative email address. For other issues with Log In, please refer to our Login Help page Happy travels, Google Earth Team
But don't worry, just press the back button and again click on "Sign me up".
Now you will see the message -
Account Registered
Thank you for signing up for Google Earth Pro. You should receive an email containing your License Key and login information shortly.
4. Check your email with subject - "Welcome to Google Earth Pro" . it will contain download link and your license deatils.
5. Now follow the download instructions and enjoy !!
Explore the world free of cost !! :)