Spawn #1 was my introduction to indie comics... and I've never looked back since! I followed Todd McFarlane's Spawn for one hundred consecutive issues and I loved every single one. But, while Spawn was my first; it most certainly wasn't my last indie book. There were many, many, many, many others and funny enough; they were mostly from Image Comics!
Now to the original question: Why do I read indie comics? I read indie comics for various reasons, for example... indie comics are focused on the story rather than gauging the reader's pockets for every dime they got, very different than the gimmick based way of putting books out by the "big 2". Another reason is that 9 times out of 10, if a creator is working on something they know and love; they'll put out their best work possible because it's more than a paycheck for them. And last but not least, when you buy an indie comic trusting the vision of the creator(s) who've put their hearts and souls into this project, people who've put everything they had in order to bring you a story that's worth your hard earn money and most importantly; your time! That's a big difference from the "big 2" putting out 100 books a month, with mix and match creators who sometimes don't even want to work on the books; granted there are always exceptions to the rule but I'm speaking in general.
Comics today are nothing more than useless reboots, variant covers, gimmicks and pointless events that means nothing. All these thing so is cluttered the market with garbage that you can eventually find the the 50 cent bins. Granted, publishers do these things because fanboys keep buying the books but thankfully; i see more readers moving to indie comics everyday and it give me hope. In the words of the late Dr. Martin Luther King Jr "I have a dream" that indie books become the backbone of this industry I love so much, 'I have a dream' of a world in which the "big 2" are no longer the "big 2" and indie books thrive, "I have a dream" that fans finally wake up and say to themselves we deserve better than these gimmicks the "big 2" have force fed us all these years; "I have a dream" that this day comes soon. This is why I read indie comics.