Once you play a game too often over a long period of time, you are getting used to it, to all of the game mechanics and it feels the same every day.
The first day you started playing a game, the game feels amazing and new. That lasts for some time, probably even a year. During that time the game will always feel new and fucking amazing and makes you having a lot of fun.
That's btw applying for a lot of things in human life. Bought a new smartphone? Amazing thing heh? You like it, heh? Check it out after a few years. Oh god, how it sucked. The new smartphone is far better than the old.
That's also why most people love warband back in the beta or crpg in its first days. However the game today is far more better with all the new things like improved Strat, marketplace, upkeep system (!) and much more.
edit: Same applies to Archery in crpg. Im getting killed 2 out of 10 times by ranged. I hate being killed by range, I remember being killed by range. That's why I hate range and say, Im getting killed too often by ranged. Nerf them please.