The RIAA are hypocrites of course as they have purposefully crafted an inconsistent legal position regarding the rights of consumers and musicians (with the intended effect being an answer of 'none'), however ReDigi's business model is fucking stupid. Taken to the extreme, you could use this to build a streaming service whereby the end-user only owns access to the content at the moment they are listening to it. I.e. you transfer the license to them, deduct some token amount from their account, stream the content, then refund it minus a percentage after the user is finished and no longer requires the license. That this might be technically legal under the current copyright scheme only underscores how ludicrous the whole game has become. Moral? Don't participate in it. Don't buy content if any of the money will make its way back to the RIAA, or the MPAA for that matter, as they are the ones fucking everything up and standing in the way of progress in the first place.