Be prepared for insanely high priced not very good food and lodging.
Yes, it is much cheaper out of London - and much more interesting. Lots of Roman roads, including one right in the middle of the Financial District. I loved Hadrian’s Wall and the Lake District is just beautiful. Beatrix Potter wrote there and her home is a museum. Great walking paths there. Wonderful Catholic history and walks in and outside of London. Have a great time. (You’ll love the glow-in-the-dark mashed peas that come with fish/ chips).
It’s changed. The hotels can be fantastic, although expensive, and there’s been a food revolution.