I'm not convinced. You can't offset the cost of a digibox against the TV licence, you have to add them together! (I know that's a point against, but still...) And a Digibox will receive digital radio signals through the TV. Plus, I think you have to factor in the fact that I was going to blag half the money from my flatmate :o)
I also watch DVDs on my laptop, and listen to a lot of R4 but I do appreciate a bit of telly from time to time, especially some of the documentaries, history and natural history programmes, stuff like Grand Designs and some comedy. Last night, though, my TV wasn't switched on at all.
I think my main gripe is the fact that although they're advertising digital TV (in the BBC's case, 'pushing' - isn't that still advertising?) as much as they can, not everyone can get it and there's no schedule to let people know when they will be able to get it. When I asked, I was told to lobby my MP about it. I think that's the woolliest consumer advice I've ever received.

Pen] Yer-right!
Cost of TV (average) = £70
Cost of Set-top box = £50 (£49 in Argos)
Life expectancy of both = 7 years
7 years of TV licence at £121 = £847
Total cost of TV+set-top for 7 years viewing = £967
£967 divided by two (you and flat-mate) = £483.50.
OK so I'm a pedantic bugger, but I'm also justifying my own decision not to have a TV to myself. I do not miss the natural history stuff as the best of it is available in my local library (I watch them on my pc with my 8 year-old daughter). I also miss some documentaries but I've been at the sharp-end of BBC misrepresentation so I am only too aware of how documentaries and news items are often sexed-up to present an 'angle' that will pull in the punters rather than tell the truth.

Does the culture of mis-representation not extend as far as the hallowed halls of Radio 4? Did anyone tell John Humphries yet? As an aside (I warn you, I think I'm pre-menstrual today - I've already had a go at Mastercard on the phone this morning) The Today programme really pisses me off - the last quarter of an hour today was five mintes of JH taking the piss out of a Pensioners' Cross-Party political party which was launched today, and the other ten minutes in 'serious' debate about Cricket. I ask you...

B. the D.] News and current affairs can't be that good on DAB because you appear not to have heard that "Killroy" has been pulled. Highly amusing article on page 5 of the new "Private Eye" on the subject of Mr K.-S. by the way.

pen] Right again, the mis-representation I was subject to started on R4 - a report by Trixie Rawlinson in fact. All (sensationalist) news reporting should be taken with a pinch of salt - and somehow I find it easier to be objective to news broadcast on the Radio where there are no emotive images.
Bigsmith] I shall be more attentive for vital news like this in future ;o)