Yep, some lose it faster than others. A good quality board should retain it's pop for quite some time.
A stiff cambered stick will probably hold it's pop the longest. My '08-'09 NS Heritage doesn't feel like it's lost an ounce of pop where as my '09-'10 NS Evo has lost a noticeable amount of pop with a similar number of days.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz