I really liked the physical version, because it was a nice break from hanging out in front of the screen. But sure, this is likely the signal to go shopping for an e-reader.
I read this earlier today. If I could get LJ on my iPad I would buy a subscription. Seriously, I have been buying Wired on the newsstand for like more than 10 years, but now that I can get it on my iPad for $4 less it's a no brainer. I think the future of many magazines is on platforms like the iPad.