Why not say "thank you"?

I just returned from a business trip.  I stayed two nights at a hotel in which I earn points.  As I approached the desk, they greeted me warmly.  In my room was an extra bottle of water (not the $5 kind----this was free).  With my room key was an extra lagniappe (a card for a free drink or appetizer in their restaurant).  On my floor was the concierge level, complete with a delicious healthy breakfast in the morning and an evening appetizer/happy hour in the evening. 
The next morning, on the way out the door, we asked if we could have a stack of copy paper for an activity we would be doing with our participants.  "Is this enough or do you need more?" the front desk gal asked as she held up a stack of paper? 
Naturally, we thanked them each time. 
On the way out the door, yesterday morning, I spent a bit of time at the front desk, though.  I wanted to tell them that collectively, all the people we had encountered had ensured my stay was above adequate.  They were so grateful to hear the compliments.  Despite the fact that they likely know they give great customer service, they were still giddy with hearing the praise. 
What does that tell me?  We all want to be recognized for our efforts, despite the fact that we would continue to do the right thing without any accolades. 
Why not, just for today, take a moment to thank someone at the gas station, grocery store, restaurant?  It may just make their day!!
Happy Communicating!
Shelly