This is nothing to LOL about!
I carry my XL around with me, as well as my DSiXL. It's not too much of a hassle, really, not as much as, say, a PSP or Vita. I do recommend the XL, though. Some may say it's "just bigger"...and yeah, it is. That's why it's so great. Sure, there's increased battery life, but games like Kid Icarus and Resident Evil: Revelations are so much more engrossing with the larger screen. I've been using XL systems for 3 years now, and I definitely haven't regretted the purchase. I heavily recommend it, especially if it's your first 3DS.