Down-Selling?

I have seen up-selling before but I’m not sure if I’ve seen down-selling. I have been enjoying the paid version of Fieldrunners 2 the last couple weeks when I noticed the below pop-up today. I own the paid for version but they are wanting me to download the free version to get bonus items…

That is exactly what I want to do, download the free version of an app after I already own the pad version, kudos Subatomic Studios