I occasionally see offers for auto-responder software, where you buy the software yourself (or it's free), you install it on a site, and then supposedly it takes care of all your auto-responder needs, for of course no monthly charge.
Are these programs worth it? How do they compare to the major A/R services that tend to charge a monthly fee? I'm assuming there is a gap in functionality and quality, but how big is that gap and is an ongoing monthly subscription worth it?
Separate question. If you just look for autoresponders, or contact management services, there are many options. I wonder why, aside from aWeber first, and maybe getresponse second, that I never hear of the rest of them mentioned in IM circles, like Constant Contact or Mail Chimp. These seem to do the same thing, give or take.
and, in this niche, why does aWeber stand out so much in comparison to the rest?