Truthfully, this site was in no way designed by a professional. If you want a site like this the cost would merely be the time you put in, the domain name and the hosting service.
This site is a complete mess. As I write this, I am still waiting for everything to load. It is extremely amateurish in every way and makes me think that someone found a computer in the garbage, somehow got connected to the internet and finally seen an ad for squarespace.
To be blunt. Cheap. The only expense incurred is by the poor user that pays in his/her time to look at it.