Some of you may not have played any or all of the games. So before you hunt down old copies on ebay or something that you may have a hard time getting to work on a newer system I would like to suggest this alternative... GOG.com offers all 8 original games for about $30 and they broke them into three parts....
Kings Quest 1-3 $9.99
Kings Quest 4-6 $9.99
Kings Quest 7 and 8 $9.99
as a second alternative you could buy a physical copy of the Kings Quest collection... This has only games 1-7... but in my opinion 8 is NOT really part of the series anyway its more like a spinoff action game set in the same world as KQ.... I mean even the character is not part of the royal family.