You can also upload the files to Shapeways, print in versatile plastic, and save on my previous $1 profit margin. If you order 15+ models off Shapeways you win!
But 3dHubs might be the better way to go. When I started this project 18 months ago FDM and ABS wasn’t as good; I feel like something shifted in 3d printing tech because its really quite nice now. If I started over now I would have prototyped off of 3dHubs, not Shapeways.