Though sometimes games sort of delve too far into that and create a "Vortex of straight forward uselessness".
Everything I know about card games, I learned from playing Illuminati. It's a harsh mistress but it taught me you can't just play along in card games if you want anything more than a random victory. I think the sole reason I'll still play Illuminati at the drop of the hat is its the only game that can produce sentences like "Children's Television, with the help of the Space Aliens, is attacking to control the White House."
The more "fun" a card game has in it, the better chances are you'll wander off into non-importance just trying to play the game to have fun. Games like Dominion, on the other hand, are so pared down to strategies that there's not much fun to be had until you have several games under your belt....in the meantime it's just watching other players exploit the system they understand well.
So these days I tend to prefer card games that emphasize the fun and randomness more than the strategy (although Munchkin takes it to the point of being boring.) Some of my board gaming friends have been doing it so long and so consistently that they tend to approach any board game as a system with holes in that must be found and tested. If some of them have fun breaking the rules, it's a fun game. If the rules aren't too broken, or they aren't broken enough, it's meh.
Example: One friend, when we play Arkham Horror, makes their primary strategy "humping the Golden Camel." They go to the Curiosity Shoppe and just repeated draw until they can get a good magic weapon like the Sword of Glory. If they need money, they hop over to the Newspaper to farm for a retainer. They don't care about gates, and only bother with monsters if they can pwn them. They just want to go toe-to-toe with the Ancient One, that's all that matters.
Now that there are dozens of expansions out and the Unique Item decked is glutted with less awesome stuff....AND we started cleaving to the "You must buy an object from the Curiosity Shoppe if you can afford it" rule....they don't like playing Arkham Horror as much anymore.