E-books, Tree-books, and On-demand Books

I was fortunate enough to attend this year's Publishing Business Conference and although much was discussed in the two-and-a-half days' worth of sessions I attended, there were a few themes that kept reappearing:

1. Traditional books--or "tree books"--and print is not disappearing anytime soon, but publishers should keep inventory and costs down, as well as acquire and market more wisely.
2. E-books may be on the rise, but given that they are currently such a small percentage of book sales, publishers should use them to complement, not replace, tree books: e-book sales are not currently cannibalizing tree book sales.
3. Since print is going nowhere anytime soon, more and more publishers are turning to print-on-demand and short-run digital as an alternative to the traditional offset model. And while the unit cost for these may still be higher than that of offset, the total cost is lower.
4. Inkjet technology will be the tipping point for POD by making color POD economically viable.

And although there were some bleak discussions of the current economic clime, there were hopeful predictions as well. Here's to the latter...