Physical comics are great. I have some Batman comics on my desk right now. But I'm a busy man and it's hard to keep up with graphic novels in printed format. Luckily we are seeing the early stages of digital comics and graphic novels. Whether you call them digital comics or eComics, they are awesome!
For reading and organizing your eComics you need ComicRack. It's FREE software.
Also awesome is Marvel Digital Comics Unlimited. They have thousands of Marvel comics in an awesome online reader. You can subscribe and read THOUSANDS of comics for less than $5 a month! If you don't want to spend anything, make sure to read all of the free comics. Right now they have Iron Man #1, Deadpool #14, and about ten more great reads, but the free titles change weekly. Go read some comics now!
I only hope DC develops something similar to what Marvel has.