the textures created on a grand piano are most difficult to reproduce on an electronic keyboard. However, if your instrument is an electronic keyboard than play it and be happy with it. I play many more gigs with my digital piano then on a steinway. hee hee Though it would be nice to play every gig on a concert grand. I play on whatever keys are in front of me. As long as I get to play. That keyboard does a whole lot that a piano cannot. it will stay in tune, just for starters. 
Well actually I would love to have a grand piano. But it is kind of expensive, I am going to buy an upright piano. And if I make money playing the piano, someday I will buy a grand piano. I will look great on the living room. A grand piano costs about 30.000 dollars, it is a lot of money.