I was currently building a new PC and am currently deciding on RAM. I was originally going to go with this RAM (http://pcpartpicker.com/part/gskill-memory-f43000c15q232grbb) apposed to this one (http://pcpartpicker.com/part/gskill-memory-f43000c15q32grbb) as the only difference being how many sticks it is and a decent savings. Then I saw this (http://pcpartpicker.com/part/gskill-memory-f43000c15q32grbb) I like this last one better as it is less sticks allowing for more expansion later. But, I was wondering, what is the difference between the second link and third link as there is a price difference but they appear to be the same thing. Thank you in advance.