BOOKS- do you prefer Hardcovers or Paperbacks?

Question:

BOOKS- do you prefer Hardcovers or Paperbacks?

Hardcovers are usually more expensive and heavier, but are often published prior to Paperback releases.
Normally, I pick paperbacks as they're cheaper and easier to tote around. However I tend to prefer Hardcovers for...
1) Scientific or Historical volumes (I might read multiple times)
2) Favourite photography, art, or poem collections

There's something about the massive volume of hardcovers that I find rather soothing compared to flimsy paperbacks.
Which do you prefer? Why?

Best Answer - Chosen by Asker: Paperbacks, just because I travel alot and they tend to be lighter and smaller than the Hardcovers