well I own one of the dressed up aks, I would like to have a true blue all wood beauty but it's becoming hard to find one. my reasoning behind the dressed up ak was because I loved the different applications that the AR could be used for but ammo prices for 223/5.56 suck and the parts, though easily available, are fragile. so I went out and bought an AK because of cheap ammo and toughness. I wanted one that I didn't have to worry about getting with scratched and battered furniture and I didn't want to have to worry about doing that myself so I got all synthetic furniture. I didn't really want a four rail but that's all the LGS had in stock. I also do much better with red dots than iron sights so I threw a red dot on the four rail hand guard and now I I'm have the best of both worlds.
it's just a way to add all that newfangled technological advancement to a gun that many people already trust and enjoy. marketing, supply, demand and a whole lot of bullet holes