I get the budget point, especially whenever Marvel and DC release a combined 100+ books per month, but I'll never understand the sense of entitlement that some of these "true fans" have. If you're not supporting the book no one should take your criticism seriously, because you can't vote with an imaginary wallet.
A quick way to save a lot of money is to follow the authors/artists as opposed to the character and ask yourself after each arc "do I want to keep reading?" If that answer is no twice in a row drop it and move on to something else.
Also comic readers are so much better than raw scans. I always buy digital, unless I want a trade I know I'll want to reread.