I love this series and would definitely buy the DVDs.
So do I, and so would I.
What I've never understood is why the fans of a more serious Batman (which I admittedly, am one), don't see this show for what it is: a spoof. Everything under the sun has been spoofed at one time or another, and this show was simply Batman's turn.
I think of it like this: Batman 1966 is to "serious" Batman, what Spaceballs was to Star Wars.