When the sun is out you can find a lot of paragliding pilots in front of Alubali who will offer to take you down from Khudebi back to Alubali.
There are different operators offering paragliding:
Fly Caucasus (http://www.flycaucasus.com/booking.php).
Price: approx. 200 GEL
Gudauri Paragliding (http://gudauriparagliding.com/en/tandem-paragliding-in-winter/).
Price: from 199 GEL
Fly Gudauri (http://www.flygudauri.com/).
Price: approx. 250 GEL
Max Paragliding (http://maxparagliding.com/en/winter-tandems-in-georgia-gudauri/).
Price: from 250 GEL