Total .pros registered have risen from 8,000 to 37,000 in 12 months. Just because Tatarstan.pro has no resale value, it doesn't mean the extension is dead. The keyword Tatarstan would would be difficult to sell in any extension other than .com and the geo suited .info.
I had 5 .pros in the Jan 2009 DomainFest in Hollywood, one of them was Hollywood.pro, it got no bidders with a reserve price of $1,100. If you can't sell Hollywood.pro at a domain auction in Hollywood, that doesn't bode well for Tatarstan.pro or any geo .pro.
For a geo to work in .pro it's got to be a blockbuster keyword. I hold France.pro, Italy.pro, Spain.pro, Hollywood.pro and London.pro. I am confident I could sell any of those domains on NamePros at any time for at least twice what I paid. I couldn't do that with the premium .coms and .infos I have bought on the aftermarket, invariably I've had to pay a full end user price or premium to reseller value to acquire them.
While .pro remains restricted and is only offered by 10% of registrars by volume to maybe 10% of domain registrants who are eligible to register, that's not going to change. However, if at some point if more than 1 in 100 domain registrants get offered .pro and can register it, there is scope for value appreciation.
However many new gTLD's ICANN sell off, my .pros will always be more aged than them so providing Google and other search engines don't change their algorithms, all other things being equal, they should rank higher.
Greg, I think you need to move on from bashing .pro, .pro is a baby extension, by making it your mission to hammer it at every opportunity, you look like a bully, bullies pick on kids smaller or weaker than themselves.