I've accepted new in the box units from people before. The key issue there is, they have to be new and once I'm done with them I can't send them back. Shipping is too expensive.

So, most people choose not to do it.

I've been meaning to discuss the idea of accepting Bitcoin donations with Tazz, but he's been rather sick lately and doing the taxes for this site will only make him feel sicker so I don't want to bother him with that idea right now.