Since joining this forum last month, I can't even count how many notebooks I've bought.
I was already using Moleskines for my pocket journals, but I ran right out to the bookstore and picked up a half dozen Kokuyos (plus a bunch of other related items.)
I read about the Apicas, and despite the fact I'd picked up a bunch last time I was in New Orleans, I went down to Katagiri and picked up more from them.
After reading about French-ruled paper, I went to the local stationery store to look for it. They were out of stock, so I bought some pretty Clairefontaines and a Rhodia pad. I realized I already had a Quo Vadis, in European Format, from some years ago so I dug that up. But I'll still check back to see what the stationery store produces.
Not to mention I signed up for the postcard exchange without realizing I was supposed to send site-specific postcards (not just the Crane's and various art ones in my stash) so I had to go buy NYC postcards.
Luckily, a lot of the brands you guys mention are already in my stash, without my being brand-aware. I guess I just gravitate to good paper.
I need to take a class or something to use up some of these notebooks!