This input has been really insightful.
To cover Gaius's point about that session with the Statements - I think most people felt that the LP12 was head and shoulders better. (In my original post I didn't really want to speak for other people.) There was a gasp when they first put it on (after the NDS) and this is a room full of people who, I suspect, aren't too unfamiliar with top end hifi.
On the deck front, I really expected for most people to suggest moving over. My cat will be disappointed to not get a spinning podium! ;-)
I do own some vinyl (about 20 records) but being the age I am, I have 500 CD's and a tidal account. The issue on cost is the reason I haven't gone down this route before but with vinyl being so popular at the moment I thought new records would be readily available and of good quality. Is this really not the case? Would a cd sound better? By the sound of it this is the case. This plus the cost does make it sound like I might be better putting my money into upgrading elsewhere. (Maybe more naim upgrades and even more black boxes all humming away ;-)) Looks like I am going to have to spend a lot of time listening to decks to understand where that line is , if it is for me and if I want to go there. (That's my idea of a good weekend)
Now to be a little more controversial. There is a little bit of me that feels like I can't be a true hifi head with out a deck! Now I know what you are all going to say. A) idiot B) not true c) if it bothers you that much go and spank £1,000's on a deck. (Which I don't have) So I know the irrationality of what I have just written. I could keep all of this under control if I hadn't heard the pot of gold that is that blasted Tangerine deck.
That should I win the lottery the best sounding deck sounds better than the current best streamer.
I suppose it's like all things hifi. I need to spend a lot of time listening to my options and make a decision on that. (and probably can't make decisions on what happens if I win the lottery.) In summary I am expecting to stick with digital or remortgage the house and sell the cat. (Both strong moves but become possibilities when the upgrade bug gets a grip!)