There will however be a sea change in the future, ICANN is intending the open up applications for new gTLDs in 2012 that could see hundreds more TLDs added. So if adding the dozen or so new gTLDs in the last 10 years has seemed countless, it will get worse.
If anything, so many tlds would devalue the existing .coms, .net, .org... if only slightly.
"Hey you should really check out this awesomestuff.sfdj website"
"I'll look at it when I get home."
... later in the day:
"Hmmm was it awesomestuff.com or awesomestuff.me ..."
"Let's ask Google for a link to awesomestuff"
Earlier this year Bing stated that "about 30%" of search queries are navigational.[1]
[1] http://www.bing.com/community/site_blogs/b/search/archive/20... (paragraph before penultimate screenshot)