I bet if you make a new type of deed and bundle (PRT only) You would sell a lot of them. Most PRT's are barren. Bundle them up as well. I don't know if that's even possible to separate from NPC place anywhere deeds, But its something to look into. Some folks don't want to live in a POT, and as stated PRT lots are widely available. I think PRT bundles should be more $$ than the POT bundles as well. Just a thought.