[ghaff]

Per person for a couple? I think you can start to get pretty close aside from the bigger and more expensive cities. I'm pretty sure you could do a walking trip in England for not that much more. And keep in mind that's the starting at price. Also, the UK is expensive. You can absolutely do trips to other parts of the world for that sort of money.

If it's the sort of extended trip someone is into, it might well be a decent deal. But it's not an absolute bargain relative to other alternatives one could put together.