Odds Comparision Site - Still money to be made ?

[BetFox]

Since I am working on a project, which retreives data from different bookis, I am thinking of opening an odds comparision site as well. The main work (retreiving and storing the data) has already been made so it would not be much work to set up a new comparision site.

However, do you think there is still money to be made with an odds-comparision-site or is there an excessive supply already?

I remember a guy from another forum saying, if you have a site like this, you will definetely make money. Downside is, that this will be a full-time-job if you are the programmer due to the fact the bookis change their api frequently and you have to observe it all the time.