Church Buildings

I found this picture when researching a project in Ghana and it made me wonder, is church really about the building?

Have a look at this....

In the background is a very grand building of what I believe is the local Methodist Church, not that it matters who it belongs to.
I suppose this is a sight often seen in area's of poverty, but it does get me thinking. Do we really need such enormous buildings, so grand and so costly when all around there is so much poverty.