Originally Posted by kemp
This is purely my opinion, but you may want to wait to buy nicer handpainted sock yarn after you have made a pair. Although they aren't hard, most people aren't that in love with their very first pair (haven't learned how to customize the fit etc...just getting use to the technique) That said, if that yarn makes you really happy and the seller has good ratings I would go for it.
First "pair?" My first attempt only resulted in "sock."
And I totally agree -- save the pretty handpainted stuff for when you are confident you will go on to make "socks!"