Okay … I'll chime in. There are many reasons to check your baggage … the obvious we all know is size, limit, contents, weight. I have paid to bring for the orphans. It's a no brainer. I fly from Canada many times a year and it's always the same thing … does the bag fit? What are contents? Customs don't care your bag, merely contents. Did you know that you can have many mini bottles of spirits as they do not break the rules of content (you cannot consume on the flight) … it gets very old for frequent travellers to be held up with all this. Check the bag, have my bag and purse. My partner have a small bag. Kids need stuff. I'm sick of the borderline measure and time to disembark. My take and you please please check the bag. I can assure you I have competed with many that did carry on and I booked. Got all my creams on board.