Hitting the Delete Button

Today I had to delete a scene out of a story I'm working on. The scene wasn't interesting, didn't move the plot forward and added nothing to the story. I knew it had to go, but somehow, it was still hard hitting that delete button. The scene is gone now and I'm glad because I know it made things better. So why is it so hard to say goodbye to scenes that aren't working? I know it's part of being a writer, but I'm not sure I'll ever enjoy wiping out scenes, or sentences. For the writers out there, do you have a hard time getting rid of things that aren't working?S