It's also a shame that Jackie Lane (who, along with Matthew Waterhouse) is the only surviving companion actor to not return to reprise their role in the Big Finish audio plays and has no interest in doing so (but still shows up for the conventions). I know she retired from acting (and she's Tom Baker's agent) but it would be nice to have just one companion chronicle from her...
And that's something I think is weird. Matt has done two (so far) audios for Big Finish, in their other ranges, but nothing yet for Doctor Who.
And then they bring the character back in that one-off, and have him played by some other actor. What a waste!