Why Bother with Photography?

For those reading my posts, you'll know that last Saturday night our son, Sam, celebrated his 21st birthday at a pub.  I took many photos.  Last night, we threw him a surprise party at home and I showed the photos on the iPad.  I enjoy the whole process of taking the photos and then processing them, but this is what I enjoy the most - seeing the pleasure that people get out of looking at them (and taking photos of them while that's happening).