plenty of ybb's floating around the intrawebs/ebay and the like. just try to nail down the year of manufacture; it'll make a difference as far as front suspension travel optimization (63, 80 or 100mm).
the ybb mechanism is fairly bulletproof, and rebuildable if need be.
Civilization ends at the waterline. Beyond that, we all enter the food chain, and not always right at the top.
Do you want to buy one new or used? What other manufactures are you looking at? I plan on selling my 98' YBB full XTR starting at $1299, which may be high, maybe not..I have a Lynskey Ridgeline 29 that when you push on the crank arms, the whole thing becomes noodly, my YBB never to me, felt noodly.