Personally, I never travel with anything expensive (especially on show), but you do whatever you want to do - if you want your B and LV with you and are ready to check the trolley if necessary and shove your B under the seat or in the overhead compartment then just take them with you.
I love to travel with my black Samsonite trolley and a lime green Samsonite carry-on bag as I don't have to worry over them.