NDBs & VORs were offered to the relevant AD owner/shire and flying club(s) to take over responsibility for, but few took up the offer.
Not surprising - why would a council or a flying club want to take on the cost of providing aircraft navigation facilities? What benefit do they get from it? Many aircraft using them wouldn't actually land, so even if you try to recoup costs with landing fees you (a) annoy regular users who don't use the aid and (b) don't get much money anyway. Or you get to the situation where councils or airports try to charge aircraft for simply overflying.
It's an unworkable idea put in to give the appearance of offering options.