I don't know what the aftermarket on the main docs are right now, but I don't think they're worth much more than their retail, if even that. They're lovingly crafted but nowhere near the standard of figures even a few years ago. I think the height of their output was the purple coat 11. Keep in mind, I say this owning 10, 11, 12, and the Tardis.
At this point, unless you can get a good deal on them, I think you're better off seeing if their new production standards live up to the samples they've been showing from the factory. Should they really have turned a new leaf and gotten things to a new standard, you might be best to wait to jump in when they redo the key Nuwho docs (and whatever they may stir up in-between). But with that being said, keep in mind that you'll be waiting half a lifetime given their output.