Same, I write fiction and years ago when I was starting out I bought the fancy Moleskine and Field Notes notebooks, among others. Those have never had more than a few pages filled in. I have however filled 11-12 A4 notebooks of various lengths with longhand writing that cost ~$2-5 each. Same with pens, I never want to use fancy pens or notebooks, a 5 pack of basic pens do the job just fine (though I do now have a favorite, UB-120 uni-ball micro rollerball pens).

It's fun to read about this fancy and nicely designed stuff as you say, but the less fussiness around writing for me, the better.