Constantly. Basically all the time. But I uh... rarely play it out of the house on my couch/bed.
I once took it to a friends house.
I don't know why OP thought it was to bulky to take on holiday.
Sure you need a case but it fits rather easily in a bag or suitcase.
One of my friends would straight up put his n3DSXL in his pocket, it was actually surprising how easy it was to carry that thing. Though I always have a Messenger bag on me so it went in there (along with all my other nonsense).Well, it surely isn't as convenient as the foldable DS/3DS that slides right into your pocket. It's more like a laptop.