YMMV'd! From what i've learned here, Best Buy labels certain games up for possible clearance but it's up to the individual store to actually lower the price. This game must have been labelled quickly because I saw it for $10 like a month or 2 after release.
Raiden 3 is absolutely terrible. The Raiden series has always been mediocre and this isn't even good for a Raiden game. The only reason to buy it is if you have to own EVERY shooter on the PS2. Otherwise you should buy one of the much better games like R Type Final or Gradius V.
I love shumps but hate the Raiden series. I guess it's just a flavor thing. I almost bought it about 6 months ago, solely because it was shump, but I then realized I'm not an idiot.