Was doing the same thing so while waiting for it to drop, I added some filament to my cart and was looking around when I found it.
Free beta test unit available for free (you pay shipping): our new injection molded v2 extruder!
https://printrbot.com/shop/plastic-extruder/
Limit one per customer.
Brook
I shipped 80 free extruders yesterday!
beta testers: please give feedback as soon as you can. And any online posts telling folks about it is appreciated 
If all goes well, I will release the files and put it up for sale in a week.