If you can buy one of these for under $100, it's probably worth it, IMO. Even if they are uniform 30g weighted silent switches (which feel no lighter than MX reds, IMO). That anniversary color combo (Blue & Grey) is not very attractive, but some people love it. Also the layout is funky with that tiny Japanese-style spacebar, and the ISO-ish Enter key. Plus the |\ has been moved to a 1x key in Row 4 and backspace is a 1x key as well. Neither is fatal to the appeal of the keyboard, but it's something to consider.
Anyway, I would still say $100 or less is a great price to pay for one of these. ($1 of course is ridiculous, and it will sell for more that that.)
$100-$150 range is overpaying, but still okay, if it goes that high, and if you really want one of these for your collection.
$150-$200 and over is just too high. Instead you should just get a brand-new RealForce 87U from EK Brian for $250 with a warranty, and with a more attractive color scheme (either white/grey or black on black).