According to https://namestat.org/
.CLICK and .LINK are 80 cents each. That is the reason.
http://www.thedomains.com/2015/04/0...-link-registrations-per-frank-schilling-tweet
I like the sound of Click more then Link but I have always been leery of sudden price drops and subsequent spikes.
I have a singular Click domain name and passed on Link but in my opinion, nothing good ever comes from a sudden price drop for domains other then short lived attention (think science... I never hear any talk about that extension any more).
Just my opinion.
Cheers
.click and .link do have a sense of internet, but a little longer to type comparing to two-letter and three-letter strings.