I picked up an excellent MKII "standard" today. I keep pretty good tabs on the local market and felt good about the purchase. It's an 82 in 95-98% condition. I like all the MK series and add one to the pile when I run across one at a decent price. As I often do with a used purchase, I brought it home, looked up the year, and priced it in Blue Book. BB seems to favor certain arms for some reason you can't put your finger on. And it looks down on others. Often you can see the price correlation with rarity or age, but not always. I could speculate on my own, but for the sake of conversation ... Why do MK IIs fair so poorly in BB?