Update.
I... uh... ahum... ehhr...
Bought the radio series.
And the BBC mini-series.
At the Amazon.co.uk Market Place.
Yeah.
I've been cruising around the interwebz and youtube, downloaded some stuff here and there, listened and watched a bit, and came to the conclusion that I HAD to have this stuff. It's just plain funny
Conclusion: THHGTTG does not work well in book form, but it's very good as a radio play, and it's epic as a TV series. It's like the radio play, with the addition of visuals. (As far as I've seen/heard.) The dated, old-fashioned effects actually are the icing on the cream in the old series.
I can see THHGTTG as a radio play and mini series become one of my favorites, while I'll probably continue to dislike the books. This is one of the few times a TV version is better than the book version.