Pretty impressive to actually find these things when they were first released! Very few people ever did, that's for sure...
This is still a very treasured and HTF piece for the carded collectors of course, but I'd imagine most of the loose collectors were relieved to find both of these figures getting re-carded into the basic Saga line over the past 6-8 months. I'd guess that probably brought the secondary market value on them down just a bit... Of course, the base wasn't included with the single carded figures, so loose completists might still need to go after the original POTJ item, if they're that agro for the accessories too.
Definitely one of the better Vaders released, arguably the best one, and a nice Maul too.