Worthy of a twc?

Posts here selling for 2.7/m but looks like it's negotiable

http://www.sythe.org/runescape-2007...zaat-j-f-25m-rsgp-sale-alexandrazaat-j-f.html

Then posts here buying all at 2.7/m and it seems like there is no point to do this as would lose money most likely and is paying higher that almost anyone

http://www.sythe.org/runescape-2007-gold-buying/1655936-buying-all-07-rsgp-2-7-1m-alexandrazaat.html

 

TWC'd, thanks.