We are in the process of renovating a bungalow that is intended to be our forever home. The things that encouraged a move were my health and the sress of decades of living under the neighbours from hell. My better half was raised in a bungalow that his mum still lives in so had always wanted one of his own, detached, with nice decent-sized garden, garage, workshop, shed, greenhouse, conservatory so we will have all those things, and decent neighbours in a quiet street. If we came into any money that wasn't enough for a big move and a next door property became available we'd try to buy it and move our current neighbour to become our new neighbour - she's lovely and has already said she's pleased for us but after nearly 30 years will miss us - we'd love to have been in a position to take her with us.
It's unlikely we will ever want to move again unless we won the National Lottery/Euromillions or Set For Life draw and could afford 'the dream' of a farm, woodland, outbuildings, barns etc or a small-holding and enough cash to be able to buy in some help or offer opportunities to local people and/or a long-term prospect for a young person who loves animals, nature, working the land etc and is keen to learn and be a part of the dream.
My aunt & uncle moved to somewhere like the homes you describe but she died last month and I don't know what my uncle's future plans are - as far as I know they were happy, loved having a home with everything brand new after a lifetime of 'making do' and having neighbours of similar ages and shared interests. Not sure it would suit us but who knows what the future will bring. I'd be unlikely to be able to manage living alone.