That pillow is certainly expensive but is really the only one I could find which was light enough I could really justify to take along in a BOB. Too pricey for me as well. I'm currently using a full sized cotton covered duck down pillow I found on sale for about $25. It isn't as light weighing in at around 18oz.

I've tried all sorts of pillow solutions including a down jacket or other clothing stuffed into a Thermarest Stuff Sack Pillow etc but in the end I have found that a full sized pillow is much more comfortable allowing much more undisturbed sleep during the night. But with comfort comes a weight penalty as always.

http://www.ultralightoutdoorgear.co.uk/thermarest_stuff_sack_pillow.html

A roomier sleeping bag also helps. Many of the mummy designs although very efficient thermally restrict movement so I'm also currently using a lightweight square shaped down bag during the summer months.

Having a warm secure and comfortable sleep system allows recovery from the previous days excitement.