Also, if you happen to see rook boxes that come with sleeves in them, STAY AWAY. They're quite possibly worse than the unnecessary 'pretty' ultrapros. They break in sets of ten and come in sets of 80.
The ones I saw came with 50 in the box and you had to buy a pack of 30 seperate. The colors where inconsistent and they started to split the very first time I shuffled them. Complete ass.
I find that with the Japanese sleeves, after a bit of play they get stuck to each other, and they don't "glide" against each other smoothly.
Also, they don't fit in Rook capsules. At least not the one I bought. Blarg.
That happens to me mostly on tables that aren't regularly cleaned and don't have table cloths. Also, I bought the Guay artist set and they're all too short.

I did find that the older white and black Rook capsules, as well as the new ones that contain sleeves are tall enough.
I have Gunmetal that I hoard for events, and Dragon Shields for everyday playing (though I couldn't resist not using Gunmetal on at least one deck). I do need to buy more though.