Random Thought: SD Card versus Thumbdrive

I’ve noticed that I’m just not using my thumb drives anymore.  We have a few 16GB Class 6 SDHC cards floating around the family.  Between those cards for offline, Dropbox and the web apps I’ve discussed before, I always seem to have what I want at hand.  As an added bonus, I can pop those cards into one of our cameras for backup storage as well.  I don’t think I’ll be buying any stock in thumb drives anytime soon.  Is there a benefit I’m not considering?  Tell me in the comments.