Whose attempted to go Digital Only? How have you found it and how long have you tried to do it for?
I went digital only back in March, 2009. During the year of 2009 I considered a few times reading paper books, but decided against it each time. Now 21 months later I don't forsee me reading anymore paper comics, with a couple of exceptions.
During the last 21 month I maintained my Marvel Digital Comics Unlimited Subscription, but I've since let that lapse. As cost-effective as it was, it was nowhere near as comfortable as reading comics on the iPad. the iPad has since become my primary method of reading comics.
If I were to buy every single comic on the iPad that I wanted to, it would cost me $682, and I would get approximately 269 comics. After I had read all those comics, I would still want to spend approximately $35 a week on newly released comics on the iPad, which would be about 14 comics a week. With such a library of comics, I don't see myself needing to buy any physical comics anytime soon. While I don't get the latest comics, I am getting comics for a mere $2.50 (on average) instead of $7. I also haven't read these comics, so I am still interested in reading them.
That said, there are some exceptions. One exception is Superman: Earth One. This was a print-only release, so I decided to get it in print. There are also some Golden Age comics that haven't been released on the iPad (such as The Atom Archives, Vol. 1) that I may want to get.
So while I'm not 100% digital, I'm 99% digital, and I'm happy to keep going at this current pace.
What about everyone else. Have you tried and found you didn't like it? Have you struck a happy in-between?