A very successful internet marketing guru that I know (he shall remain nameless for now) discovered over the years that the first emails that he sends to his opt-in list have the best chance of being read completely. What he did was rather than focus on one option to drive people to, he created multiple paths (links to various funnels) and gave people multiple options, instead of viewing one option and then unsubscribing or not reading future emails. Also, he doesn't make the first email short. He makes them long and full of information since that might be the only email people read from him. Just a thought. It works for him.