Got in a nice nes collection recently but haven't been able to find a accurate value for Pradikus conflict and where in time is Carmen sandiego , both are CIB. And with the Pradikus I have both the blue and black cart so would putting 1 over the other make it worth more. 

My 2nd question is I got 4 very old game mags 2 electronic gaming monthly vol 1 number 3 & 4 and gamepro sept/oct 1989 and vol 1 number 2 , these have any value at all as they were kind of fun to read again , any help is great and thanks .