I'm fully acclimated to my digital piano now. I played my old acoustic upright at my parents' house this weekend and it didn't feel right to me. The piano is about 25 years old and was never maintained well. The keys are sticky and sit low, as though they no long bounce back to their full resting position. I did have the soft pedal locked and played lightly, but it felt impotent. My digital piano feels perfect. That is my home base now.
I wonder if the piano can be returned to life with a little service.