Something you might want to do is to rent / borrow boards before buying. There are two reasons for that.
First, the great beginning boards (Start) are good for the first few times only. Once you figure it out, you will want a board with more glide, like the Rio maybe. So a beginner board is not a great long term investment if you don't plan on starting many other on it.
Second, renting boards will allow you to try different things, and figure out better what you want before buying.
You can rent boards at schools, shops, and many clubs. Research what's available in your area.