Originally posted by boriscleto A 32GB card is around $22...it's not a big investment. On the 16 MP K-5 a 32GB card can hold over 900 RAW images (I shoot RAW exclusively), I can run out of battery before I run out of storage...
Or more to the point, using a 32 gig card, I always run out of battery before I run out of storage. Many of our trips are two weeks in length with no chance to recharge batteries along the way. With two batteries, I've had dying batteries crimp my style a bit, but not miss any images. With 32 GB cards I've once used a 16 GB back up card. I usually pick up my cards on sale at Staples or Henry's, and $22 is probably a good ball park figure, although I did splurge and paid $49 for the Scandisk Extreme (45Mb/sec) for my K-3.
I always travel with a back up battery, on longer trips, I bring two. That will be good for over 1500 pictures.