Big Games Just Aren't Doing It For Me

I don't know what it is with me lately.  Gears of War 3?  Haven't opened it.  Batman: Arkham City?  Finding it 'meh'.  X-Men Destiny?  Finished it and went back for more.  Captain America: Super Soldier?  Halfway through it and enjoying it.  Do I build up these big event games into some unattainable expectation of happiness, or do I just prefer games that are in the 6.5-7.5 range as far as quality? If so, am I the equivalent of the weird cinema guy who would rather watch Killer Klowns from Outer Space over Citizen Kane?

It's been puzzling me.  I seriously waste cycles of my limited brainpower pondering this question.  I know Batman isn't a bad game, it just doesn't wow me.  I know Captain America is not a terribly inventive game.  linear gameplay, rote storytelling, etc... but I'm having fun with it.  Is it a function of game length?  That doesn't make sense as Mass Effect and Dragon Age pulled me in easily.  Is it a subconscious juvenile "I can't like mainstream things" mentality?  Again, it doesn't make sense, as I go all fanboy for some mainstream games.

I still have Bioshock 2 in the shrinkwrap (despite having already downloaded Minverva's Den).  How many times have I passed this over to play Knight's Contract, Venetica, Gothic: Arcania 4 or any others in that class of game?

I think I'm spending too much time analyzing this, but it does irk me some.  I find myself shrugging and politely nodding when a coworker mentions how Gears 3 brings the story together, as I've never finished one Gears game to date.  However, if they ask me about Jurassic: The Hunted, I can tell them all about it, even though it's not a very good game.

Weird.