As you may know, Makerbot has recently come out with a new Replicator 2 (single extrusion) and will soon be releasing the Replicator 2X (dual extrusion). I had a tough decision to make. In the end, I decided to go with the Replicator 1. Not only was the price more realistic ($1999 vs. $2799), but the Replicator 1 still runs with open source software, while the newest Makerbots come with Makerbot's own proprietary software. (Read the controversy, as well as Makerbot's response.) I feel like, in the spirit of Making, I needed to share the open source model with my students.