Having purchased many books thru O'Reilly, and now using Safari Online - I'm a huge fan of this move. Feels to me like going from iTunes to Spotify, or Netflix DVDs to Streaming.
Spotify/Netflix makes perfect sense for a subscription model because of the way we consume musics/videos. The same can't be said for technical books. Not for $399 a year anyway. With that price point, seems like they are hoping to get employers to pay for it.
I guess the main difference is not that the price ratio between subscription and individual items is off, but rather that most consumers don't want 1 book a month. It's a bummer that they don't give people an option, but I'm still a fan of Safari...and I hope this move will mean they drastically improve the Safari app, much like Netflix has doubled down on Streaming now that they don't do DVDs.
When I read technical books, its going to be because there is a specific thing that I want to learn, and when I'm done with the books, I expect to have a new skill under my belt that I can start polishing. I certainly don't do this at a rate of 1 book a month.
Yeah, the fact the pricing is offered at rate that is way more than most people's (including mine) purchasing habit is a bummer, but the inclusion of DRM meaning that you lose access to your "purchase" once your subscription ends is the deal breaker for me.
The fact there is a lot more content in the Safari offering may look like a good value in the marketing copy, but that just means more noise to filter through for me. I only have limited amount of time to spend on consuming content after all.