Windows Insider Preview?

Hello,

I've been thinking about installing Windows 10 on my late 2013 rMBP. I was thinking of using the Windows Insider Preview program, as this would probably be a infrequently-used install- just something for the occasional Windows program.

Before the official release of Windows 10, I downloaded and installed the Windows 10 TP for a brief amount of time, before removing and uninstalling the Boot Camp partition.

Now that Windows 10 has been officially released, can I reinstall the new Windows 10 TP builds (I can download it from Microsoft), and not have to pay for a Windows license, because I am a beta tester?