Yes I think you're right.
I was watching the 'Homes Under the Hammer' tv program a few days ago. A couple of guys bought a property quite close to where I live in Essex, which caught my attention. They had gone to the auction to buy something else but had got out bid so, they bid and won this other property without seeing it. It was a wreck, needed a lot of work and they paid over the top for it. They spent £30K+ refurbishing it to a good standard and expected to do well. It got valued and pretty much what they had spent. The reason ?.......they didn't know the area, didn't know what properties there sold for, had unrealistic expectations, hadn't done their homework etc......and that's the issue. Everywhere has good and not so good areas. As locals we all know where is good or not so good or to avoid where we live. But up North, with no knowledge of the areas I wouldn't feel comfortable buying anywhere.