Nothing wrong with DAB
In my experience there not much technically wrong with DAB.
Whatever the analogue hippies say, quality IS better than FM, not quite in the same way that CD's are better than LP's, but not far off.
Yes, bitrates could be higher and yes coverage could be better but IMO there is only one problem with DAB - lack of support from broadcasters.
The format has never really delivered the variety it promised. Don't get me wrong - its still light years ahead of FM in that regard. i.e. it has a couple of dedicated Rock stations (ok so its old fogey rock, but still) and, until recently, a Jazz station. I have never heard any stations on FM that played anything other than the current top 40 factory produced teen fodder.
As for the argument about it being superseeded by Internet radio, that may be true, but ONLY because internet radio really does deliver variety, any genre you can think of is catered for. Delivering radio over the internet is a really inefficient way of broadcasting and a massive waste of valuable bandwidth because separate 'copies' of the data have to be sent to every listener as opposed to DAB which just sends one copy that can be picked up simultaneously by eveyone.