Its that time of year when all sorts of stuff can be had on sale! PushPlastic, my favorite ABS vendor is running a buy 2, get 1 free sale on their 1kg and 750g spools. They've got more than ABS of course. Their per-spool price on most things is 29$, and they have a free shipping option for US customers. They also ship quickly. Discount code is B2G1SALE2016 Head over PushPlastic.com and get yourselves some filament! This is not a paid ad, I get no kickbacks or anything from them other than what I purchase, I just really like their filament (made in the USA too, not more rebadged chinese import filament).