I've been buying Hatchbox on Amazon with Prime for a long time now. Usually $23 with free 2 day shipping.

That said, their prices seem to be going up on some colors, and with the delay in shipping because of Holidays I went to a store semi-near me and bought a few rolls of Inland PLA. I've tried the stuff a long time ago, it was decent. This is supposed to be "better quality formula" than before, so we will see. I hope it is just as nice, because it's only $14.99 per 1 KG and I can pick it up in a store