I wouldn't say massively sought after, you shouldn't have too much trouble selling if that's what you are asking but I don't think you'll command a big premium these days as it's not a huge upgrade in honesty. Lots of reasonably priced options for BBK's doesn't help in that respect.
I've held on to mine when I swapped to a BBK in case I ever sell so I can switch them back. Don't think the relatively small claw back for a sale would be worth it to me.