1 - found thingiverse.com - amazing resource! Anything else like it?

2 - If you own one, how many do you own? Thinking about getting a 2nd one and using 1 for longer prints (15+ hours) and 1 for shorter prints (2 hours ish)

3 - Do any of you sell printed items on etsy? elsewhere? Need to make money from this investment! :) Ideally I don't want to print things from thingiverse.com and sell them (that sounds like steeling to me) but my own designs, why not?

4 - where else to go from here? Any benefit to printers with dual extruders? Any low cost of entry aluminum printers?

5 - any "hacker news" sites for 3d printing?