Just what Luke has said already,most do have some form of peppering but it would be nice to see some without,chuck some pics up if you can?
If you a paying the price for a pair,best to see them with fry on there back
Also what are your intentions?,raising discus takes a lot of work and isn't necessarily for everyone
Though its nice to have a goal,for instance with the marlboro you could look at trying to clean them up of peppering