No idea what the rage is with the hydroflask. My kids don't give a darn about them, but a lot of the kids at the gym have one. Luckily youngest is quite happy with her water bottle. That Millenium Falcon costs a pretty penny, but the other stuff isn't terrible. Luckily ds didn't ask for any Lego this year. The last Lego Star Wars we got him ,R2D2, ended up being taken apart for "other projects."

Dh got him a Y- Wing Fighter to put together when he was about 11. Yeah, that ended up in pieces. For dh's bday this year, he put it back together for him. He found the instructions, and for pieces he couldn't find, he just used different colors.