Similar Sales that end in -ed:
JustReduced.com sold for $480 in 2004
JustIntroduced.com sold for $300 in 2007
JustUploaded.com sold for $60 in 2007
Other Similar Sales:
JustBackUp.com sold for $9,999 in 2013
UpgradeMeNow.com sold for $2,788 in 2012
As for development potential.. my first thought was a site letting people know their software/drivers have been upgraded and giving them a link to download.
This type of domain only attracts end users once in a blue moon. It's value lies in being developed. If you were to resell it to a domainer they might be willing to pay low-mid $xx for it if they see potential in it.