Yes, seriously, it is. Even for a stay at home mom, after all chores/laundry (a.k.a torture) are done, I settle down for about an hour if possible, and continue to battle through the little pixel towns with my trusty Pokemon party. I have now even gone so far as to follow a very helpful, straight to the point, and humorous blog Pokemon X/Y walkthrough by a guy named Matt. So thanks to Matt, for helping me get ahead in my extremely important, mission critical Pokemon gaming.
Back to the addictive part – it is more addicting now than when I played it back in the day (reference Gameboy here) because now there is a social element to it, what with all the actual fellow Pokemon players you can “meet” globally during gameplay. You can much more easily trade and battle on the fly now, the way PX and PY are set up. The interaction and more intricate involvement in leveling up your Pokemon make for a game that is easy to play anywhere/anytime but difficult to put down.