There are so many products out there that claim you can make a website in an afternoon....which you probably can if you are a fast learner, but the question here is what will the quality of it look like? Have you planned it out? Do you have the right keywords and metatags on your site?
So, I guess the answer to the "you can build it in an afternoon or a day or a few hours".......yeah, sure, but it's going to look exactly like it was built in an afternoon. Quality website design...