Pro Tools 12 Academic version - 2 options?

Hi - I'm about to upgrade from PT11 to 12. I use the Academic/Education version. I can't work out the difference betwen the $99 and the $299 version on this page. The $299 comes as a box the $99 as a download, but are there other differences? I just want to move from 11 to 12, so why the big price differences?

thanks!

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