Getting the best / cheapest internet deal depends on the user. If you are a light user and use the web only to browse, shop, and check your email, then a low-cost package will fill your need correctly. This thing also holds for people who live alone.
On the contrary, if you are someone handling a team or need to attend conferences from time to time, then high-speed internet will reap the benefits for you. You can also opt for a fiber broadband package for same as it is faster, secure, and reliable.