Discounts or credit for purchasing blu-ray/DVD after already owning the VOD?

[videogamedrome]

 It would be great if we could get discounts or credit added to our accounts for already owning a VOD since it's included when you buy a physical copy of a Rifftrax performance when we've already bought the VOD. I wasn't aware that there would be a physical release for Samurai Cop Live! so I bought it awhile back, so if I had known there would be a physical copy of it I would have waited. Just thought it would be nice to get a bit of credit back for already owning the VOD when I bought it on blu-ray as well.