I don't see the appeal of all the new GTLDs. They won't ever have any significant value. 3dprintingtool.com is a good domain. It's crazy how so many people have invested so heavily into 3d printing domain names. It may be a good 10-15 years before most of these have any value. that's $90 - $150 per domain in registration fees. Quite a bit of money in my opinion. By the time 3d printing is that popular, for all we know we won't even be using domain name any longer.