I pay full price for some games.
My machine is only mediocre, so frankly I'm not going to get as good an experience as someone else buying a new release game. Hence, I don't buy new release games. Despite being an insane Fallout fan, I didn't get Fallout 3 until I had a PC that could do it justice. Likewise with Oblivion, and Skyrim.
Games I will/do buy full price:
Grand Strategies
Hearts of Iron, Victoria, Europa Unversalis, Crusader Kings (new DLC incoming today I believe The Old Gods HURRAAAHHH!!!!)
Taleworlds Hack n Slash
Mount & Blade, Warband, With Fire & Sword, Napoleonic Wars (hopefully Bannerlord will be *climaxes*!)
Note - both these series of games (the Grand Strategies, and M&B) both are dated. M&B looks like the bastard child of Morrowind and GoldenEye 64; and the historical simulations amount to staring at a map and a series of spreadsheets for hours on end. Neither are graphically 'up there'. They're functional, with no bells and whistles. And that what I appreciate about Paradox games and why they're the only developer I will pay full price for. For CKII, the DLCs I have purchased as soon as they were released BECAUSE THEY ROCK. I don't feel like I'm paying for functions that should have been in the original because they do actually expand the game quite a bit - playing as an Egyptian Emir is very different to playing as a Scottish Count, or a Venetian Patrician. I look forward to the next DLC where I can play as a godless heathen - a Norse chieftain, or a Mongol Khan.
That said, I'm not really a fan of the Sunset Invasion DLC (Aztecs invading Europe and holding their own against European cavalry? puh-lease! they might as well have said a small Dalek force crash lands in Nassau and proceeds to exterminate the Holy Roman Empire.