It was bound to happen, I've had them for like fifteen years and they were not used exactly but had some amount of shelf wear when I got them, and I've carted them around in a bag and flipped through pages back and forth, copied things, etc. for all this time. So... I've had to do something I HATE doing to any of my books, and my RPGs especially, I had to just hack Feng Shui to pieces.
And put it in plastic, of course. It took about 130 sheet protectors and a 1.5" ring binder, with the protectors averaging $1.50 per 25 and the binder being $2.25, so about $11.00 with tax total, for the new "body" to hold the "soul" of Feng Shui.
That's the hope, yep, to continue its existence in a new sleeker, more durable casing, although the protectors I bought are a strange species of side-loaders, they still seem solid otherwise, and the book itself, in its new incarnation, is heavier and bulkier, it is most certainly easier to find in a flap bookbag, and it has inside pockets to put thin folders and sheets of paper and such - it's kind of like a Monstrous Compendium except it has cybernetically enhanced Abominations and martial arts asskickery instead of Rust Monsters and fireball blast radii. And the rules are about one twentieth as face-meltingly complicated.