Kagurazaka is the last bastion of the geisha (more commonly called maiko in Japanese) in Tokyo. It’s also a quaint neighbourhood on a very human scale that is great for just wandering around. It also claims to have a strong French influence with more French restaurants, patisseries and bakeries than elsewhere in Tokyo. The nature of the area is much more residential than office so there are lots of small quaint shops that have probably been in the same place for 50 years or more.
In terms of cheapo attractions, all the cheap food chains have branches in Kagurazaka. McDonald’s too is surprisingly flash in Kagurazaka with an outside terrace with tables for watching the passing crowds. There are also a large number of 100 yen shops and discount pharmacies in the area so daily living is affordable in this area even if the rent isn’t.