I had the chance to visit a few Book Offs last time I was in LA and there was a great selection and I picked up some manga—that said, they definitely know what they have for the most part, but I’m sure stuff slips through the cracks. At least the East Bay has a few Half Price Books!
Please excuse how unorganized everything is! I've got the perfect storm of no more shelf space and an upcoming move, so everything is just being contained until I'm in my new place.
This is a big chunk of my collection, but it's missing another 3-4 shelves worth of stuff (most carts and a lot...
I do agree with you on the carrying extra stuff bit -- I keep the carts that I'm interested in playing with me in a separate case and it's such a hassle! I'm always paranoid that I'll lose it (and the 20+ carts inside)!