Shadowstalker16: Yes. Unfortunately you're probably right in this regard. FC3 can make them big bucks because so many people would buy it for the discounted price. I don't think FC4 tanked as much as The Crew to warrant its presence in the list, but we can always hope. The reception was certainly more mixed than that FC3 had. But The Crew was also probably suffering from population issues (since it is an ''MMO'' of some sort) and it has microtransactions while FC games don't.
I'm interested in some day owning all of the FC games, although I only own FC1&2 here on GOG at the moment. My wont-buy-Ubisoft-unless-it-is-on-GOG stance prevents me from owning them unless I get lucky and win a contest or they're put up as a free promo by Ubisoft etc. though. I got Far Cry 3 Blood Dragon that way completely by fluke. :) I bought an AMD video card and got Tomb Raider (2013) and Bioshock Infinite for free with it, and several months later got an email from AMD offering me Far Cry 3 Blood Dragon as a bonus too, so I grabbed it for free. :)
Sadly, such high end games do not fall out of trees too often so I suspect it could be a long wait until they show up on GOG for me to grab. :) I'm hopeful though... some day... :)