Enjoying your replies and perceptions here.
Do I really need a new one? No, of course not. I actually have 3 just now but one has no dishes. I got mine years ago, in the 80s and lent it to a friend and didn't like to ask to have it back. Meanwhile I picked up a second hand (immaculate) one from a local forum. The gliding mechanism on the top wasn't great but it was usable. Someone else offered me a newer one but wanted to keep the dishes. I took it and married up the best bits with the intention of freecycling the one with no dishes. These can be purchased on Ebay. Again meanwhile, my friend moved house and offered me back my own one which I am going to take, because it is the newest of all of them. I am about to pass on the "refurbished" one to my daughter in law, the one that has no dishes but which still is useful as a warming cabinet, I will pass on and that leaves me with my own one. However, my friend has one of those brushed steel ones and it is very nice so I am considering getting one and giving my original one to my niece who has just bought a flat in London and she likes to entertain.....
So, no, I don't need a new one at all really but, I can see myself going for a new one.