Best of luck from a fellow collector. I'm in the process of collecting the NA released Wii U games (I estimate around 150 exist so far based on a list I recently printed from Gamestop of all the preowned titles they had in their database. They can print this for you for free whenever you like and it is a handy / mostly accurate way to keep an inventory of your games ... more accurate than wikipedia at least).
The catch is that I am trying to go for a complete factory sealed / new collection which dramatically impacts the speed at which I can collect them (I don't want to spend thousands of dollars all at once to complete a collection; plus I like getting things for deals / on sale).
I have about 30 games so far though which is about 1/5th of the collection. I would also recommend getting protective cases, or, ideally, an enclosed storage shelf to protect your collection. Good luck!
