As a newbie I registered a lot of .BIZ domains. I quickly dropped most of those but in the early years I picked up hundreds of .Net domains. They were hard to sell so I slowly pared the .Net portfolio. I then discovered .TV in 2008 and found I could backorder some amazing keywords. Of course renewals were much more expensive. As the .TV portfolio grew and sales were slim I realized .TV while it sounds cool and makes sense for a videocentric site, .TV was not such a great investment. Youtube is free and many video channels opt to have no domain at all or use some weird made up brand rather than buy a keyword domain. Facebook has also been a factor as many content producers / end users utilize social media platforms rather than pay for an internet presence. Google's search engine algorithm changes in 2012 also reduced the placement value of EMDomains. So after ten years plus and having dropped about 80% of the domains I have ever registered with about a third of the remaining ones priced $XXX, why would I waste money on a new extension? Even with recent end user inquiries you still see them fighting to pay more than $xxx for really solid .COM domains.