The title says it all ! Are they worth spending the money ?? Also, what is the conversion rate you can expect out of them ??
Sure. I have tried both GetResponse and Aweber, and Aweber is clearly my recommendation to all. It's only $19/month and it is very user friendly. With Aweber you can make an opt-in box, in no time at all, and you can programme your auto-responder with unlimited messages (just don't spam your subscribers with email every day) PLUS you can send broadcasts instantly, if you have something new that you would like to share with your readers right away. And of course a lot of other good features.
100% yes to opt-in. the analytical data you get will help you tremendously. aweber and constant contact were my favs
Using opt-in email marketing lists isn’t only the law in many countries, but it also offers several benefits to email marketers. It could improve your conversions / response rates. When readers of commercial email messages have independently signed up for an email list, they generally have a direct interest in the subject matter or offers. That makes it more likely that those subscribers will convert to buyers, will convert to ad clicks, or will respond to email campaigns needing a reader response (such as surveys)..