I'm sure you guys had an awesome trip, and you are godly good at kendama. Good job.
Now to the people who don't like kendama or say its a waste of time. I believe getting good at anything (by that i mean gaining skills and/or knowledge) is something always rewarding. Wether it be skiing, kendama or basket weaving.
And i'm personnally nowhere near the level these guys are, and never will, but I always carry my kendama with me and play with it when waiting for the bus/plane/whatever. I've had one since i've seen up 1.2 and I have been playing it ever since.