Is There an Age Limit on Wearing Short Dresses?

I was in San Francisco this weekend with my husband.  We checked into our Union Square hotel and headed straight to Nordstrom's.  While my husband sat in a comfortable chair, I tried on a beautiful Robert Rodriguez belted, twist silk dress -- short.  It hit me about mid-thigh -- officially short.  I borrowed a pair of Cole Haan black patent-leather pumps and walked out to get my husband's reaction.  He was speechless -- he clearly liked how I looked.  The short dress flowed effortlessly over my curves and the pumps stretched my leg muscles upward as I glided across the room like a model.  I looked HOT!  And I felt HOT.  I wanted the dress.  And then I thought, "...am I too old to wear a dress this short?"  And I talked myself out of buying it.  I've been thinking about the dress ever since. 

Did I make the right decision? 

I'd like to know what you think.

Can a woman over 50 wear a short dress that hits mid thigh, even if she has the legs to pull it off?

What would you have done?

This isn't me -- this is a young model wearing the same dress....