My response is similar to those who have already posted....the money is definitely in the list.
A squeeze page with an offer of a really good report is a decent way to build your list. On all of my sites I offer a minimum of 2 reports to secure the opt-in.
If you want to see an example head to www.OnlineSuperWealth.com which is a simple squeeze page with an offer.
An important factor is to direct traffic to your squeeze page, and you must have well placed content to do that.
As my mentors (if you are just starting...hunt someone down to show you the way!) have pointed out many, many times...content is king.
Be sure to post a quality article in an ezine etc with the link to your squeeze page. If you have a good offer there, people will opt-in and you will start raking it in!
The downside is...when you are just starting out even that can seem overwhelming. Do not get discouraged...stay awake later and get up earlier, it will come together for you if you put the work in, even if it is 30 minutes in morning and 30 minutes at night.
Take Care
Todd