Prompted by similar enquiry form elsewhere: I really think it's time Garmin did something about it really: the above response is >4 years old, and - surprisingly - when one purchases & downloads maps via GE, they are downloaded to separate temporary destination under 'c:\ProgramData\Garmin\CoreService\Downloads\' - and actually promptly deleted once maps are successfully installed on device.
No. I expect the market for touring GPS will disappear when roaming rates get reasonable. The only reason I have a device is for bike trips overseas. But with data plans becoming affordable I can run Google Maps on my phone and have always up to date maps and far superior routing.