I'll second the use of online resources. I don't really care for Marvel Unlimited as a service; I feel that creates an obligation. I'll spend easily the $60 over the course of the year on other digital (Marvel) comics, but that expense targets what I'm interested to read. I am not criticizing Cory's choice - that works for him, and I'm relating why it doesn't work for me.
As you might surmise though...I am at Comixology's beck and call. Watch the sales, watch the bundles. There's great deals to be had if you strike while the iron's hot. For example, you can bet your bottom dollar that we'll see a lot of Cap, X-men, Spidey and Thanos-related sales over the year to pump those movies. In point of fact, one of the better bundles available now is a GOTG bundle.
And of course, there's a crapload beyond Marvel and DC. Some of my favourites include Saga, Chew, Satellite Sam, Nowhere Men, Jupiter's Legacy, Manhattan Projects, Secret History, Archer and Armstrong, and more besides. I'll second some of Scott's suggestions, especially Maus: that is possibly the most powerful comic-style story I've ever read.
But really, your best friend is the sale. At 99 cents, you'll find yourself a whole lot more willing to try a new title.
