I remember the PW days when the PAKs came out. People were praising how detailed, accurate and affordable the PAK Snake was. I got it right away and was blown away by it, I've never seen such a gorgeous Snake figure right out of the box, but the PW line never reached the insane after market prices of Solid Snake, Ninja or Raiden.
I'm guessing the internet age where MGS is commercialized to death on sites such as Facebook really brought out people who've never collected figures before and PAK is the go-to company for MGS figures, hence why it's so popular despite being overpriced. This would have never happened during the McFarlane days where the figures were cheap and the best of their times.
You gotta hand it to SquareEnix, it's an brilliant business strategy. Let's just hope they don't introduce a build-a-figure option.